SECURITY AGREEMENT
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     Security  Agreement  ("Agreement")  dated as of  March  21,  2001,  between
ULTRASOUND  TECHNICAL  SERVICES,  INC. D/B/A ULTRASOUND  DIAGNOSTIC  SCHOOLS,  a
corporation  organized  and  existing  under  the laws of the  State of New York
having its principal  office at 4400 Biscayne Blvd, 6th Floor,  Miami,  FL 33137
("Grantor"),  and MERRILL LYNCH BUSINESS  FINANCIAL SERVICES INC., a corporation
organized  and  existing  under the laws of the  State of  Delaware  having  its
principal office at 222 North LaSalle Street, Chicago, IL 60601 ("MLBFS").

     In order to induce MLBFS to extend or continue to extend  credit to WHITMAN
EDUCATION  GROUP,  INC.  D/B/A WHITMAN  EDUCATION  GROUP F/K/A  WHITMAN  MEDICAL
CORPORATION  ("Customer")  under  the Loan  Agreements  (as  defined  below)  or
otherwise,  and for other  good and  valuable  consideration,  the  receipt  and
sufficiency of which is hereby acknowledged, Grantor hereby agrees with MLBFS as
follows:

1. DEFINITIONS

     (a)  Specific  Terms.  In  addition  to  terms  defined  elsewhere  in this
Agreement,  when used  herein  the  following  terms  shall  have the  following
meanings:

     (i) "Account  Debtor"  shall mean any party who is or may become  obligated
with respect to an Account or Chattel Paper.

     (ii) "Bankruptcy  Event" shall mean any of the following:  (A) a proceeding
under any bankruptcy,  reorganization,  arrangement, insolvency, readjustment of
debt or receivership law or statute shall be filed or consented to by Grantor or
Customer;  or (B) any such proceeding shall be filed against Grantor or Customer
and shall not be dismissed or withdrawn within sixty (60) days after filing;  or
(C)  Grantor or  Customer  shall make a general  assignment  for the  benefit of
creditors;  or (D) Grantor or Customer  shall  generally fail to pay or admit in
writing  its  inability  to pay its debts as they  become due; or (E) Grantor or
Customer shall be adjudicated a bankrupt or insolvent.

     (iii)  "Business  Day" shall mean any day other  than a  Saturday,  Sunday,
federal  holiday or other day on which the New York Stock  Exchange is regularly
closed.

     (iv) "Collateral" shall mean all Accounts,  Chattel Paper, Contract Rights,
Inventory,   Equipment,   Fixtures,   General  Intangibles,   Deposit  Accounts,
Documents,  Instruments,  Financial  Assets and Investment  Property of Grantor,
howsoever  arising,  whether  now owned or  existing  or  hereafter  acquired or
arising, and wherever located;  together with all parts thereof (including spare
parts), all accessories and accessions thereto, all books and records (including
computer  records)  directly related thereto,  all proceeds thereof  (including,
without  limitation,  proceeds in the form of Accounts and insurance  proceeds),
and the additional collateral described in Section 7 (b) hereof.

     (v)  "Default"  shall mean an "Event of  Default",  as defined in Section 6
hereof, or any event which with the giving of notice,  passage of time, or both,
would constitute such an Event of Default.

     (vi) "Loan  Agreement"  shall mean: (a) that certain TERM LOAN AND SECURITY
AGREEMENT  No.  0103551501  between  MLBFS  and  Customer,   together  with  all
agreements,  instruments and documents executed pursuant thereto,  as any or all
of the same may from time to time be or have been amended, restated, extended or
supplemented.

     (vii) "Location of Tangible  Collateral"  shall mean the address of Grantor
set forth at the beginning of this Agreement, together with any other address or
addresses  set forth on any  exhibit  hereto  as being a  Location  of  Tangible
Collateral.

     (viii)  "Obligations"  shall mean all  liabilities,  indebtedness and other
obligations  of  Customer  or Grantor to MLBFS,  howsoever  created,  arising or
evidenced,  whether  now  existing  or  hereafter  arising,  whether  direct  or
indirect,  absolute or contingent, due or to become due, primary or secondary or
joint or several,  and, without  limiting the foregoing,  shall include interest
accruing  after the filing of any  petition in  bankruptcy,  and all present and
future  liabilities,  indebtedness  and  obligations  of Customer under the Loan
Agreements  and the  agreements,  instruments  and documents  executed  pursuant
thereto, and of Grantor under this Agreement.

     (ix) "Permitted Liens" shall mean with respect to the Collateral: (A) liens
for current  taxes not  delinquent,  other  non-consensual  liens arising in the
ordinary  course of  business  for sums not due,  and,  if MLBFS'  rights to and
interest in the Collateral are not  materially and adversely  affected  thereby,
any such liens for taxes or other  non-consensual  liens arising in the ordinary
course of business being contested in good faith by appropriate proceedings; (B)
liens in favor of MLBFS; and (C) any other liens expressly  permitted in writing
by MLBFS.

     (b) Other Terms. Except as otherwise defined herein, all terms used in this
Agreement which are defined in the Uniform  Commercial Code of Illinois  ("UCC")
shall have the meanings set forth in the UCC.


2. COLLATERAL

     (a)  Pledge  of  Collateral.  To  secure  payment  and  performance  of the
Obligations,  Grantor hereby pledges, assigns, transfers and sets over to MLBFS,
and grants to MLBFS a first lien and  security  interest  in and upon all of the
Collateral, subject only to Permitted Liens.

     (b) Liens.  Except upon the prior written  consent of MLBFS,  Grantor shall
not create or permit to exist any lien, encumbrance or security interest upon or
with  respect  to any  Collateral  now owned or  hereafter  acquired  other than
Permitted Liens.

     (c)  Performance  of   Obligations.   Grantor  shall  perform  all  of  its
obligations  owing  on  account  of or with  respect  to the  Collateral  in all
material  respects;  it being  understood that nothing herein,  and no action or
inaction  by  MLBFS,  under  this  Agreement  or  otherwise,  shall be deemed an
assumption by MLBFS of any of Grantor's said obligations.

     (d) Notice of Certain Events.  Grantor shall give MLBFS immediate notice of
any  attachment,  lien,  judicial  process,  encumbrance  or claim  affecting or
involving $25,000.00 or more of the Collateral.

     (e) Indemnification Grantor shall indemnify, defend and save MLBFS harmless
from and against any and all claims, losses, costs, expenses (including, without
limitation,  reasonable  attorneys'  fees and expenses),  demands,  liabilities,
penalties,  fines and forfeitures of any nature whatsoever which may be asserted
against or incurred by MLBFS  arising out of or in any manner  occasioned by (i)
the ownership,  use, operation,  condition or maintenance of any Collateral,  or
(ii) any  failure  by  Grantor  to  perform  any of its  obligations  hereunder;
excluding,  however,  from said indemnity any such claims,  losses, etc. arising
out of the  willful  wrongful  act or active  gross  negligence  of MLBFS.  This
indemnity  shall survive the  expiration or  termination of this Agreement as to
all matters arising or accruing prior to such expiration or termination.

     (f) Insurance.  Grantor shall insure all of the tangible Collateral with an
insurer or insurers  reasonably  acceptable to MLBFS, under a policy or policies
of physical damage insurance  reasonably  acceptable to MLBFS providing that (i)
losses  will be  payable to MLBFS as its  interests  may  appear  pursuant  to a
Lender's Loss Payable endorsement , and (ii) MLBFS will receive not less than 10
days  prior  written  notice of any  cancellation;  and  containing  such  other
provisions as may be reasonably  required by MLBFS.  Grantor shall maintain such
other  insurance as may be required by law or otherwise  reasonably  required by
MLBFS.  Grantor  shall  furnish  MLBFS with a copy or  certificate  of each such
policy or policies and, prior to any expiration or cancellation, each renewal or
replacement thereof.

     (g)  Event of  Loss.  Grantor  shall at its  expense  promptly  repair  all
reasonably  repairable damage to any tangible Collateral.  In the event that any
tangible  Collateral  is damaged  beyond  repair,  lost,  totally  destroyed  or
confiscated  (an "Event of Loss") and such  Collateral had a value prior to such
Event of Loss of  $25,000.00  or more,  then, on or before the first to occur of
(i) 90 days after the occurrence of such Event of Loss, or (ii) 10 Business Days
after the date on which  either  Grantor or MLBFS shall  receive any proceeds of
insurance on account of such Event of Loss, or any  underwriter  of insurance on
such tangible  Collateral shall advise either Grantor or MLBFS that it disclaims
liability in respect of such Event of Loss,  Grantor shall, at Grantor's option,
either  replace  the  Collateral  subject to such Event of Loss with  comparable
Collateral  free of all liens other than Permitted Liens (in which event Grantor
shall be entitled to utilize the  proceeds of insurance on account of such Event
of Loss for such purpose, and may retain any excess proceeds of such insurance),
or pay to MLBFS on account of the Obligations an amount equal to the actual cash
value of such  Collateral  as  determined  by either  the  applicable  insurance
company's  payment (plus any applicable  deductible) or, in absence of insurance
company  payment,  as  reasonably  determined  by  MLBFS.   Notwithstanding  the
foregoing,  if at the  time of  occurrence  of such  Event  of Loss or any  time
thereafter  prior to replacement or payment,  as aforesaid,  an Event of Default
shall have  occurred  and be  continuing  hereunder,  then MLBFS may at its sole
option, exercisable at any time while such Event of Default shall be continuing,
require  Grantor to either replace such  Collateral or make a payment on account
of the Obligations, as aforesaid.

     (h)  Sales  and  Collections.  So long as no Event of  Default  shall  have
occurred and be continuing,  Grantor may in the ordinary course of its business:
(i) sell any Inventory  normally  held by Grantor for sale,  (ii) use or consume
any materials and supplies normally held by Grantor for use or consumption,  and
(iii) collect all of its  Accounts.  Grantor shall take such action with respect
to protection of its Inventory and the other  Collateral  and the  collection of
its Accounts as MLBFS may from time to time reasonably request.


     (i) Account  Schedules.  Upon the request of MLBFS, made now or at any time
or times  hereafter,  Grantor shall  deliver to MLBFS,  in addition to the other
information required hereunder, a schedule identifying, for each Account and all
Chattel  Paper  subject to MLBFS'  security  interests  hereunder,  each Account
Debtor by name and address and amount,  invoice number and date of each invoice.
Grantor shall furnish to MLBFS such additional  information  with respect to the
Collateral,  and  amounts  received  by  Grantor  as  proceeds  of  any  of  the
Collateral, as MLBFS may from time to time reasonably request.

     (j) Location.  Except for movements in the ordinary course of its business,
Grantor  shall give MLBFS 30 days'  prior  written  notice of the  placing at or
movement of any tangible  Collateral  to any  location  other than a Location of
Tangible  Collateral.  In no event shall  Grantor  cause or permit any  tangible
Collateral  to be removed  from the United  States  without  the  express  prior
written consent of MLBFS.

     (k) Alterations and  Maintenance.  Except upon the prior written consent of
MLBFS, Grantor shall not make or permit any material alterations to any tangible
Collateral which might materially  reduce or impair its market value or utility.
Grantor shall at all times keep the tangible  Collateral  in good  condition and
repair,  reasonable wear and tear obsolescence  excepted, and shall pay or cause
to be paid all  obligations  arising  from the  repair and  maintenance  of such
Collateral, as well as all obligations with respect to each Location of Tangible
Collateral,  except for any such obligations  being contested by Grantor in good
faith by appropriate proceedings.

3. REPRESENTATIONS AND WARRANTIES

Grantor represents and warrants to MLBFS that:

     (a)  Organization.  Grantor is a  corporation  duly  organized  and validly
existing  in good  standing  under  the laws of the  State of New  York,  and is
qualified  to do  business  and in good  standing  in each other state where the
nature of its  business  or the  property  owned by it make  such  qualification
necessary.

     (b)  Execution,  Delivery  and  Performance.  The  execution,  delivery and
performance  by  Grantor  of this  Agreement  have been duly  authorized  by all
requisite  action, do not and will not violate or conflict with any law or other
governmental  requirement,  or any of the  agreements,  instruments or documents
which formed or governed Grantor,  and do not and will not breach or violate any
of the  provisions  of, and will not result in a default by Grantor  under,  any
other agreement, instrument or document to which it is a party or by which it or
its properties are bound.

     (c) Notice or Consent. Except as may have been given or obtained, no notice
to or consent or approval of any  governmental  body or authority or other third
party whatsoever (including, without limitation, any other creditor) is required
in connection  with the  execution,  delivery or  performance by Grantor of this
Agreement.

     (d) Valid and  Binding.  This  Agreement  is the legal,  valid and  binding
obligation  of Grantor,  enforceable  against it in  accordance  with its terms,
except as  enforceability  may be limited by  bankruptcy  and other similar laws
affecting the rights of creditors generally or by general principles of equity.

     (e)  Financial  Statements.  Except as  expressly  set forth in  Grantor 's
financial  statements,  all financial  statements of Grantor  furnished to MLBFS
have been prepared in conformity with generally accepted accounting  principles,
consistently  applied,  are true and correct,  and fairly  present the financial
condition  of it as at such  dates and the  results  of its  operations  for the
periods  then ended;  and since the most recent date  covered by such  financial
statements,  there has been no  material  adverse  change in any such  financial
condition or operation.

     (f) Litigation,  etc. Except as previously disclosed through Customer's SEC
filings, no litigation, arbitration,  administrative or governmental proceedings
are pending or threatened against Grantor, which would, if adversely determined,
materially and adversely affect the financial condition or continued  operations
of Grantor, or the liens and security interests of MLBFS hereunder.

     (g) Taxes. All federal, state and local tax returns, reports and statements
required  to  be  filed  by  Grantor  have  been  filed  with  the   appropriate
governmental  agencies and all taxes due and payable by Grantor have been timely
paid  (except  to the  extent  that  any  such  failure  to file or pay will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder or the financial condition or continued operations of Grantor).


     (h)  Collateral.  Grantor has good and marketable  title to the Collateral,
subject to  immaterial  imperfections  in title,  and,  except for any Permitted
Liens:  (i) none of the  Collateral  is  subject  to any  lien,  encumbrance  or
security  interest,  and (ii) upon the  filing of all  Uniform  Commercial  Code
financing  statements  executed by Grantor with respect to the  Collateral  or a
copy of this Agreement in the appropriate  jurisdiction(s) and/or the completion
of any other action  required by applicable  law to perfect is lien and security
interests,  MLBFS  will  have  valid and  perfected  first  liens  and  security
interests upon all of the Collateral.

     Each of the foregoing  representations  and warranties has been and will be
relied upon as an  inducement to MLBFS to advance funds or extend or continue to
extend  credit to  Customer,  and is  continuing  and shall be deemed  remade by
Grantor  concurrently  with each such advance or extension of credit by MLBFS to
Customer.

4. FINANCIAL AND OTHER INFORMATION

     Grantor  covenants  and agrees  that  Grantor  will  furnish or cause to be
furnished to MLBFS during the term of this  Agreement  such  financial and other
information  as may be required  by the Loan  Agreements  or any other  document
evidencing the Obligations or as MLBFS may from time to time reasonably  request
relating to Grantor or the Collateral.

5. OTHER COVENANTS

Grantor further agrees during the term of this Agreement that:

     (a) Financial Records; Inspection.  Grantor will: (i) maintain complete and
accurate books and records at its principal place of business,  and maintain all
of its financial  records in a manner  consistent with the financial  statements
heretofore  furnished  to  MLBFS,  or  prepared  on such  other  basis as may be
approved  in  writing by MLBFS;  and (ii)  permit  MLBFS or its duly  authorized
representatives,  upon reasonable notice and at reasonable times, to inspect its
properties (both real and personal), operations, books and records.

     (b)  Taxes.  Grantor  will pay when due all  taxes,  assessments  and other
governmental  charges,  howsoever  designated,  and all  other  liabilities  and
obligations,  except  to the  extent  that  any  such  failure  to pay  will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (c) Compliance With Laws and Agreements.  Grantor will not violate any law,
regulation or other governmental requirement, any judgment or order of any court
or governmental agency or authority, or any agreement, instrument or document to
which  it is a party  or by  which  it is  bound,  if any  such  violation  will
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (d)  Notification  By  Grantor.  Grantor  shall  provide  MLBFS with prompt
written notification of: (i) any Default;  (ii) any materially adverse change in
the business,  financial  condition or  operations  of Customer or Grantor;  and
(iii) any information which indicates that any financial  statements of Customer
or  Grantor  fail in any  material  respect  to  present  fairly  the  financial
condition  and  results  of  operations   purported  to  be  presented  in  such
statements. Each notification by Grantor pursuant hereto shall specify the event
or information causing such notification,  and, to the extent applicable,  shall
specify the steps being taken to rectify or remedy such event or information.

     (e) Notice of Change Grantor shall give MLBFS not less than 30 days prior
written notice of any change in the name (including any fictitious name) or
principal place of business of Grantor.

     (f)  Continuity.  Except  upon the prior  written  consent of MLBFS,  which
consent will not be unreasonably  withheld:  (i) Grantor shall not be a party to
any merger or  consolidation  with,  or  purchase  or  otherwise  acquire all or
substantially  all of the assets of, or any material stock,  partnership,  joint
venture or other equity interest in, any person or entity, or sell,  transfer or
lease all or any substantial part of its assets, if any such action would result
in either: (A) a material change in the principal business, ownership or control
of Grantor,  or (B) a material  adverse  change in the  financial  condition  or
operations  of Grantor;  (ii)  Grantor  shall  preserve its  existence  and good
standing in the  jurisdiction(s)  of establishment and operation;  (iii) Grantor
shall not  engage in any  material  business  substantially  different  from its
business in effect as of the date of  application  by  Customer  for credit from
MLBFS,  or cease  operating any such material  business;  (iv) Grantor shall not
cause or permit any other  person or entity to assume or succeed to any material
business or  operations  of Grantor;  and (iv) Grantor shall not cause or permit
any material change in its controlling ownership.


6. EVENTS OF DEFAULT

     The occurrence of any of the following events shall constitute an "Event of
Default" under this Agreement:

     (a) Event of Default  Under any Loan  Agreement.  An Event of Default shall
occur under the terms of any of the Loan
Agreements.

     (b)  Failure  to  Perform.  Grantor  shall  default in the  performance  or
observance  of any covenant or agreement on its part to be performed or observed
under this  Agreement  (not  constituting  an Event of  Default  under any other
clause of this  Section),  and such default  shall  continue  unremedied  for 10
Business  Days after  written  notice  thereof shall have been given by MLBFS to
Grantor.

     (c) Breach of  Warranty.  Any  representation  or warranty  made by Grantor
contained in this  Agreement  shall at any time prove to have been  incorrect in
any material respect when made.

     (d) Default Under Other Agreement. A default or Event of Default by Grantor
shall occur under the terms of any other agreement,  instrument or document with
or intended  for the benefit of MLBFS,  Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated  ("MLPF&S")  or any of their  affiliates,  and any required  notice
shall have been given and required passage of time shall have elapsed.

     (e) Seizure or Abuse of Collateral.  The  Collateral,  or any material part
thereof,  shall  be or  become  subject  to any  levy,  attachment,  seizure  or
confiscation which is not released within 10 Business Days.

(f) Bankruptcy Event. Any Bankruptcy Event shall occur.

     (g) Material Impairment. Any event shall occur which shall reasonably cause
MLBFS to in good faith  believe that the prospect of payment or  performance  by
Grantor  has  been  materially  impaired.  The  existence  of  such  a  material
impairment shall be determined in a manner consistent with the intent of Section
1-208 of the UCC.

     (h)  Acceleration of Debt to Other  Creditors.  Any event shall occur which
results in the  acceleration of the maturity of any  indebtedness of $100,000.00
or  more  of  Grantor  to  another  creditor  under  any  indenture,  agreement,
undertaking, or otherwise.

7. REMEDIES

     (a) Remedies Upon Default Upon the occurrence and during the continuance of
any Event of Default,  MLBFS may at its sole option do any one or more or all of
the  following,  at such  time  and in  such  order  as  MLBFS  may in its  sole
discretion choose:

     (i) Acceleration. MLBFS may declare all Obligations to be forthwith due and
payable,  whereupon  all such  amounts  shall be  immediately  due and  payable,
without presentment,  demand for payment,  protest and notice of protest, notice
of dishonor,  notice of  acceleration,  notice of intent to  accelerate or other
notice or  formality  of any kind,  all of which are  hereby  expressly  waived;
provided,  however,  that  upon  the  occurrence  of any  Bankruptcy  Event  all
Obligations shall automatically become due and payable without any action on the
part of MLBFS.

     (ii) Exercise Rights of Secured Party. MLBFS may exercise any or all of the
remedies of a secured party under applicable law, including, but not limited to,
the UCC, and any or all of its other rights and remedies under this Agreement.

     (iii) Possession.  MLBFS may require Grantor to make the Collateral and the
records pertaining to the Collateral available to MLBFS at a place designated by
MLBFS which is reasonably  convenient to Grantor,  or may take possession of the
Collateral and the records  pertaining to the Collateral  without the use of any
judicial process and without any prior notice to Grantor.

     (iv) Sale. MLBFS may sell any or all of the Collateral at public or private
sale upon such terms and  conditions as MLBFS may  reasonably  deem proper,  and
MLBFS may purchase any  Collateral at any such public sale; and the net proceeds
of any such public or private sale and all other amounts  actually  collected or
received  by MLBFS  pursuant  hereto,  after  deducting  all costs and  expenses
incurred at any time in the collection of the Obligations and in the protection,
collection  and sale of the  Collateral,  will be applied to the  payment of the
Obligations,  with any remaining proceeds paid to Grantor or whoever else may be
entitled thereto, and with Customer and each guarantor of Customer's obligations
remaining  jointly and severally  liable for any amount  remaining  unpaid after
such application.

     (v) Delivery of Cash,  Checks,  Etc. MLBFS may require Grantor to forthwith
upon  receipt,  transmit  and deliver to MLBFS in the form  received,  all cash,
checks,  drafts  and  other  instruments  for the  payment  of  money  (properly
endorsed,  where  required,  so that such items may be collected by MLBFS) which
may be  received  by  Grantor  at any  time in full or  partial  payment  of any
Collateral,  and require that Grantor not  commingle any such items which may be
so received by Grantor  with any other of its funds or property but instead hold
them separate and apart and in trust for MLBFS until delivery is made to MLBFS.



     (vi)  Notification of Account Debtors.  MLBFS may notify any Account Debtor
that its  Account or Chattel  Paper has been  assigned  to MLBFS and direct such
Account Debtor to make payment  directly to MLBFS of all amounts due or becoming
due with respect to such Account or Chattel Paper; and MLBFS may enforce payment
and collect, by legal proceedings or otherwise, such Account or Chattel Paper.

     (vii) Control of Collateral. MLBFS may otherwise take control in any lawful
manner of any cash or non-cash items of payment or proceeds of Collateral and of
any rejected,  returned, stopped in transit or repossessed goods included in the
Collateral and endorse Grantor name on any item of payment on or proceeds of the
Collateral,   and,  in  connection  therewith,   MLBFS  may  notify  the  postal
authorities  to change the address for delivery of mail  addressed to Grantor to
such address as MLBFS may designate.

     (b) Set-Off.  MLBFS shall have the further  right upon the  occurrence  and
during the continuance of an Event of Default to set-off,  appropriate and apply
toward payment of any of the Obligations,  in such order of application as MLBFS
may from  time to time and at any  time  elect,  any  cash,  credits,  deposits,
accounts,  financial  assets,  investment  property,  securities  and any  other
property  of Grantor  which is in transit  to or in the  possession,  custody or
control of MLBFS, MLPF&S or any agent,  bailee, or affiliate of MLBFS or MLPF&S.
Grantor hereby  collaterally  assigns and grants to MLBFS a security interest in
all such property as additional Collateral.

     (c)  Power of  Attorney.  Effective  upon the  occurrence  and  during  the
continuance of an Event of Default, Grantor hereby irrevocably appoints MLBFS as
its  attorney-in-fact,  with full power of substitution,  in its place and stead
and in its name or in the name of MLBFS,  to from  time to time in  MLBFS'  sole
discretion  take any action and to execute any  instrument  which MLBFS may deem
necessary or advisable to accomplish the purposes of this Agreement,  including,
but not limited to, to receive, endorse and collect all checks, drafts and other
instruments  for the  payment of money made  payable to Grantor  included in the
Collateral.

     (d) Remedies are Severable and Cumulative. All rights and remedies of MLBFS
herein are  severable  and  cumulative  and in addition to all other  rights and
remedies  available at law or in equity,  and any one or more of such rights and
remedies may be exercised  simultaneously  or successively.  Any notice required
under this  Agreement or under  applicable  law shall be deemed  reasonably  and
properly  given to Grantor if given at the  address and by any of the methods of
giving notice set forth in this Agreement at least 5 Business Days before taking
any action specified in such notice.

     (e) Notices.  To the fullest extent  permitted by applicable  law,  Grantor
hereby irrevocably waives and releases MLBFS of and from any and all liabilities
and  penalties  for  failure  of MLBFS to  comply  with any  statutory  or other
requirement  imposed upon MLBFS relating to notices of sale,  holding of sale or
reporting  of  any  sale,  and  Grantor  waives  all  rights  of  redemption  or
reinstatement  from any such sale.  MLBFS  shall have the right to  postpone  or
adjourn any sale or other  disposition  of Collateral at any time without giving
notice of any such postponed or adjourned date. In the event MLBFS seeks to take
possession of any or all of the  Collateral by court  process,  Grantor  further
irrevocably  waives to the  fullest  extent  permitted  by law any bonds and any
surety or  security  relating  thereto  required by any  statute,  court rule or
otherwise as an incident to such possession, and any demand for possession prior
to the commencement of any suit or action.

8. MISCELLANEOUS

     (a) Non-Waiver.  No failure or delay on the part of MLBFS in exercising any
right,  power or remedy  pursuant to this  Agreement  shall  operate as a waiver
thereof,  and no single or partial  exercise of any such right,  power or remedy
shall  preclude any other or further  exercise  thereof,  or the exercise of any
other  right,  power or  remedy.  Neither  any waiver of any  provision  of this
Agreement,  nor any  consent to any  departure  by Grantor  therefrom,  shall be
effective unless the same shall be in writing and signed by MLBFS. Any waiver of
any provision of this Agreement and any consent to any departure by Grantor from
the terms of this Agreement shall be effective only in the specific instance and
for the specific purpose for which given. Except as otherwise expressly provided
herein,  no notice to or demand on Grantor shall in any case entitle  Grantor to
any other or further notice or demand in similar or other circumstances.



     (b)  Communications.  All  notices  and other  communications  required  or
permitted  hereunder  shall  be  in  writing,  and  shall  be  either  delivered
personally,  mailed  by  postage  prepaid  certified  mail or  sent  by  express
overnight  courier or by  facsimile.  Such notices and  communications  shall be
deemed to be given on the date of personal delivery,  facsimile  transmission or
actual  delivery of certified  mail,  or one  Business Day after  delivery to an
express  overnight  courier.  Unless  otherwise  specified  in a notice  sent or
delivered in accordance with the terms hereof,  notices and other communications
in writing shall be given to the parties  hereto at their  respective  addresses
set forth at the  beginning  of this  Agreement,  and, in the case of  facsimile
transmission,  to the parties at their respective  regular  facsimile  telephone
number.

     (c) Costs,  Expenses and Taxes.  Grantor shall pay or reimburse  MLBFS upon
demand for: (i) all Uniform  Commercial Code filing and search fees and expenses
incurred  by  MLBFS  in  connection   with  the   verification,   perfection  or
preservation of MLBFS' rights  hereunder or in the Collateral;  (ii) any and all
stamp,  transfer and other taxes and fees payable or determined to be payable in
connection with the execution,  delivery and/or recording of this Agreement; and
(iii) all reasonable fees and out-of-pocket expenses (including, but not limited
to,  reasonable  fees and  expenses  of outside  counsel)  incurred  by MLBFS in
connection  with the  enforcement  of this Agreement or the protection of MLBFS'
rights hereunder, excluding, however, salaries and expenses of MLBFS' employees.
The  obligations of Grantor under this paragraph shall survive the expiration or
termination of this Agreement and the discharge of the other Obligations.

     (d) Right to Perform  Obligations.  If Grantor  shall fail to do any act or
thing which it has covenanted to do under this  Agreement or any  representation
or  warranty  on the  part of  Grantor  contained  in this  Agreement  shall  be
breached,  MLBFS may,  in its sole  discretion,  after 5 Business  Days  written
notice is sent to Grantor (or such lesser  notice,  including  no notice,  as is
reasonable  under  the  circumstances),  do the  same or  cause it to be done or
remedy any such breach,  and may expend its funds for such purpose.  Any and all
reasonable  amounts so expended by MLBFS shall be  repayable to MLBFS by Grantor
upon  demand,  with  interest  at the  highest  "Interest  Rate"  under the Loan
Agreements  under  any of the Loan  Agreements,  or the  highest  interest  rate
permitted by law,  whichever is less,  during the period from and  including the
date  funds  are so  expended  by MLBFS to the date of  repayment,  and any such
amounts  due and owing  MLBFS shall be  additional  Obligations.  The payment or
performance by MLBFS of any of Grantor's obligations hereunder shall not relieve
Grantor of said  obligations or of the  consequences  of having failed to pay or
perform the same, and shall not waive or be deemed a cure of any Default.

     (e) Further  Assurances.  Grantor agrees to do such further acts and things
and to execute and deliver to MLBFS such additional agreements,  instruments and
documents as MLBFS may  reasonably  require or deem  advisable to effectuate the
purposes  of this  Agreement,  or to  establish,  perfect  and  maintain  MLBFS'
security interests and liens upon the Collateral, including, but not limited to:
(i) executing financing  statements or amendments thereto when and as reasonably
requested  by  MLBFS;  and  (ii) if in the  reasonable  judgment  of MLBFS it is
required by local law, causing the owners and/or mortgagees of the real property
on which any  Collateral  may be located to execute and deliver to MLBFS waivers
or subordinations reasonably satisfactory to MLBFS with respect to any rights in
such Collateral.

     (f) Binding  Effect.  This Agreement  shall be binding upon Grantor and its
successors  and  assigns,  and  shall  inure to the  benefit  of  MLBFS  and its
successors and assigns.

     (g) Headings. Captions and section and paragraph headings in this Agreement
are  inserted  only as a  matter  of  convenience,  and  shall  not  affect  the
interpretation hereof.



     (h) Governing Law. This Agreement  shall be governed in all respects by the
laws of the State of Illinois.

     (i) Severability of Provisions.  Whenever possible,  each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable  law.  Any  provision  of  this  Agreement  which  is  prohibited  or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
only to the extent of such prohibition or unenforceability  without invalidating
the  remaining  provisions  of this  Agreement  or  affecting  the  validity  or
enforceability of such provision in any other jurisdiction.

     (j) Term. This Agreement  shall become  effective upon acceptance by MLBFS,
and, subject to the terms hereof, shall continue in effect so long thereafter as
either MLBFS shall be committed to advance funds or extend credit to Customer or
there shall be any Obligations outstanding.

     (k)   Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts which, when taken together, constitute one and the same agreement.

     (l) Jurisdiction; Waiver. GRANTOR acknowledges that this Agreement is being
accepted by MLBFS in partial  consideration  of MLBFS' right and option,  in its
sole discretion, to enforce this Agreement in either the State of Illinois or in
any other  jurisdiction  where GRANTOR or any collateral for the Obligations may
be located.  GRANTOR  IRREVOCABLY SUBMITS ITSELF to jurisdiction in the State of
Illinois and venue in any State or Federal  Court in the County of Cook for such
purposes, and GRANTOR waives any and all rights to contest said jurisdiction and
venue AND THE  CONVENIENCE  OF ANY SUCH FORUM,  AND ANY AND ALL RIGHTS TO REMOVE
SUCH ACTION FROM STATE TO FEDERAL  COURT.  GRANTOR  further waives any rights to
commence any action  against MLBFS in any  jurisdiction  except in the County of
Cook and State of Illinois.  MLBFS and GRANTOR hereby each  expressly  waive any
and all  rights to a trial by jury in any  action,  proceeding  or  counterclaim
brought BY either of the parties  against  the other  party with  respect to any
matter  relating  to,  arising  out of or in any way  connected  with  the  Loan
AgreementS,  this Agreement and/or any of the transactions which are the subject
matter of the Loan  AgreementS or this  Agreement.  GRANTOR  FURTHER  WAIVES THE
RIGHT TO BRING ANY NON-COMPULSORY COUNTERCLAIMS.

     (m)   Integration.   This   written   Agreement   constitutes   the  entire
understanding  and represents the full and final  agreement  between the parties
with  respect to the  subject  matter  hereof,  and may not be  contradicted  by
evidence of prior  written  agreements or prior,  contemporaneous  or subsequent
oral  agreements of the parties.  There are no unwritten oral  agreements of the
parties.  No  amendment or  modification  of this  Agreement  shall be effective
unless in a writing signed by both MLBFS and GRANTOR.

     IN WITNESS WHEREOF, this Agreement has been executed as of the day and year
first above written.

ULTRASOUND TECHNICAL SERVICES, INC. D/B/A ULTRASOUND DIAGNOSTIC SCHOOLS


By: ____________________________________________________________________________
                  Signature (1)                      Signature (2)

--------------------------------------------------------------------------------
                  Printed Name                       Printed Name

--------------------------------------------------------------------------------
                  Title                              Title

Accepted at Chicago, Illinois:
MERRILL LYNCH BUSINESS FINANCIAL
SERVICES INC.


By: __________________________________________________________



                                    EXHIBIT A

     ATTACHED  TO AND HEREBY MADE A PART OF SECURITY  AGREEMENT  NO.  0103551501
BETWEEN MERRILL LYNCH BUSINESS FINANCIAL SERVICES INC. AND ULTRASOUND  TECHNICAL
SERVICES,       INC.       D/B/A       ULTRASOUND       DIAGNOSTIC       SCHOOLS
================================================================================


Locations of Tangible Collateral:

120 E. 16th Street, 2nd Floor
New York, NY  10003

One Old Country Road, Suite LL1
Carle Place, NY  11514

2269 Saw Mill River Road
Elmsford, NY  10523

675 US Route 1, 2nd Floor
Iselin, NJ  08830

3 Neshaminy Interplex, Suite 117
Trevose, PA  19053

8401 Corporate Drive, Suite 500
Landover, MD 20785

365 Caldwell Drive, 1st Floor
Springfield, MA  01104

4770 N. StateRoad 7
Lauderdale Lakes, FL  33319

5701 E. Hillsborough Avenue
Tampa, FL 33610

1140 Hammond Drive, Suite A-1150
Atlanta, GA  30328

10500 Forum Place Drive, Suite 200
Houston, TX 77036

10255 Fortune Parkway, Suite 501
Jacksonville, FL  32256

2998 N. Stemmons Blvd
Dallas, TX 75247

5830 Ellsworth Avenue, Suite 102
Pittsburgh, PA  15232

17535 Rosbough Drive
Middleburg Heights, OH  44130



                               SECURITY AGREEMENT
================================================================================

     Security  Agreement  ("Agreement")  dated as of  March  21,  2001,  between
SANFORD BROWN COLLEGE, INC., a corporation organized and existing under the laws
of the State of  Delaware  having its  principal  office at 520 E. 19th  Avenue,
North Kansas City, MO 64116  ("Grantor"),  and MERRILL LYNCH BUSINESS  FINANCIAL
SERVICES INC., a corporation  organized and existing under the laws of the State
of Delaware having its principal office at 222 North LaSalle Street, Chicago, IL
60601 ("MLBFS").

     In order to induce MLBFS to extend or continue to extend  credit to WHITMAN
EDUCATION  GROUP,  INC.  D/B/A WHITMAN  EDUCATION  GROUP F/K/A  WHITMAN  MEDICAL
CORPORATION  ("Customer")  under  the Loan  Agreements  (as  defined  below)  or
otherwise,  and for other  good and  valuable  consideration,  the  receipt  and
sufficiency of which is hereby acknowledged, Grantor hereby agrees with MLBFS as
follows:

1. DEFINITIONS

     (a)  Specific  Terms.  In  addition  to  terms  defined  elsewhere  in this
Agreement,  when used  herein  the  following  terms  shall  have the  following
meanings:

     (i) "Account  Debtor"  shall mean any party who is or may become  obligated
with respect to an Account or Chattel Paper.

     (ii) "Bankruptcy  Event" shall mean any of the following:  (A) a proceeding
under any bankruptcy,  reorganization,  arrangement, insolvency, readjustment of
debt or receivership law or statute shall be filed or consented to by Grantor or
Customer;  or (B) any such proceeding shall be filed against Grantor or Customer
and shall not be dismissed or withdrawn within sixty (60) days after filing;  or
(C)  Grantor or  Customer  shall make a general  assignment  for the  benefit of
creditors;  or (D) Grantor or Customer  shall  generally fail to pay or admit in
writing  its  inability  to pay its debts as they  become due; or (E) Grantor or
Customer shall be adjudicated a bankrupt or insolvent.

     (iii)  "Business  Day" shall mean any day other  than a  Saturday,  Sunday,
federal  holiday or other day on which the New York Stock  Exchange is regularly
closed.

     (iv) "Collateral" shall mean all Accounts,  Chattel Paper, Contract Rights,
Inventory,   Equipment,   Fixtures,   General  Intangibles,   Deposit  Accounts,
Documents,  Instruments,  Financial  Assets and Investment  Property of Grantor,
howsoever  arising,  whether  now owned or  existing  or  hereafter  acquired or
arising, and wherever located;  together with all parts thereof (including spare
parts), all accessories and accessions thereto, all books and records (including
computer  records)  directly related thereto,  all proceeds thereof  (including,
without  limitation,  proceeds in the form of Accounts and insurance  proceeds),
and the additional collateral described in Section 7 (b) hereof.

     (v)  "Default"  shall mean an "Event of  Default",  as defined in Section 6
hereof, or any event which with the giving of notice,  passage of time, or both,
would constitute such an Event of Default.

     (vi) " Loan Agreement"  shall mean: (a) that certain TERM LOAN AND SECURITY
AGREEMENT  No.  0103551501  between  MLBFS  and  Customer,   together  with  all
agreements,  instruments and documents executed pursuant thereto,  as any or all
of the same may from time to time be or have been amended, restated, extended or
supplemented.

     (vii) "Location of Tangible  Collateral"  shall mean the address of Grantor
set forth at the beginning of this Agreement, together with any other address or
addresses  set forth on any  exhibit  hereto  as being a  Location  of  Tangible
Collateral.

     (viii)  "Obligations"  shall mean all  liabilities,  indebtedness and other
obligations  of  Customer  or Grantor to MLBFS,  howsoever  created,  arising or
evidenced,  whether  now  existing  or  hereafter  arising,  whether  direct  or
indirect,  absolute or contingent, due or to become due, primary or secondary or
joint or several,  and, without  limiting the foregoing,  shall include interest
accruing  after the filing of any  petition in  bankruptcy,  and all present and
future  liabilities,  indebtedness  and  obligations  of Customer under the Loan
Agreements  and the  agreements,  instruments  and documents  executed  pursuant
thereto, and of Grantor under this Agreement.


     (ix) "Permitted Liens" shall mean with respect to the Collateral: (A) liens
for current  taxes not  delinquent,  other  non-consensual  liens arising in the
ordinary  course of  business  for sums not due,  and,  if MLBFS'  rights to and
interest in the Collateral are not  materially and adversely  affected  thereby,
any such liens for taxes or other  non-consensual  liens arising in the ordinary
course of business being contested in good faith by appropriate proceedings; (B)
liens in favor of MLBFS; and (C) any other liens expressly  permitted in writing
by MLBFS.

     (b) Other Terms. Except as otherwise defined herein, all terms used in this
Agreement which are defined in the Uniform  Commercial Code of Illinois  ("UCC")
shall have the meanings set forth in the UCC.

2. COLLATERAL

     (a)  Pledge  of  Collateral.  To  secure  payment  and  performance  of the
Obligations,  Grantor hereby pledges, assigns, transfers and sets over to MLBFS,
and grants to MLBFS a first lien and  security  interest  in and upon all of the
Collateral, subject only to Permitted Liens.

     (b) Liens.  Except upon the prior written  consent of MLBFS,  Grantor shall
not create or permit to exist any lien, encumbrance or security interest upon or
with  respect  to any  Collateral  now owned or  hereafter  acquired  other than
Permitted Liens.

     (c)  Performance  of   Obligations.   Grantor  shall  perform  all  of  its
obligations  owing  on  account  of or with  respect  to the  Collateral  in all
material  respects;  it being  understood that nothing herein,  and no action or
inaction  by  MLBFS,  under  this  Agreement  or  otherwise,  shall be deemed an
assumption by MLBFS of any of Grantor's said obligations.

     (d) Notice of Certain Events.  Grantor shall give MLBFS immediate notice of
any  attachment,  lien,  judicial  process,  encumbrance  or claim  affecting or
involving $25,000.00 or more of the Collateral.

     (e) Indemnification Grantor shall indemnify, defend and save MLBFS harmless
from and against any and all claims, losses, costs, expenses (including, without
limitation,  reasonable  attorneys'  fees and expenses),  demands,  liabilities,
penalties,  fines and forfeitures of any nature whatsoever which may be asserted
against or incurred by MLBFS  arising out of or in any manner  occasioned by (i)
the ownership,  use, operation,  condition or maintenance of any Collateral,  or
(ii) any  failure  by  Grantor  to  perform  any of its  obligations  hereunder;
excluding,  however,  from said indemnity any such claims,  losses, etc. arising
out of the  willful  wrongful  act or active  gross  negligence  of MLBFS.  This
indemnity  shall survive the  expiration or  termination of this Agreement as to
all matters arising or accruing prior to such expiration or termination.

     (f) Insurance.  Grantor shall insure all of the tangible Collateral with an
insurer or insurers  reasonably  acceptable to MLBFS, under a policy or policies
of physical damage insurance  reasonably  acceptable to MLBFS providing that (i)
losses  will be  payable to MLBFS as its  interests  may  appear  pursuant  to a
Lender's Loss Payable endorsement , and (ii) MLBFS will receive not less than 10
days  prior  written  notice of any  cancellation;  and  containing  such  other
provisions as may be reasonably  required by MLBFS.  Grantor shall maintain such
other  insurance as may be required by law or otherwise  reasonably  required by
MLBFS.  Grantor  shall  furnish  MLBFS with a copy or  certificate  of each such
policy or policies and, prior to any expiration or cancellation, each renewal or
replacement thereof.


     (g)  Event of  Loss.  Grantor  shall at its  expense  promptly  repair  all
reasonably  repairable damage to any tangible Collateral.  In the event that any
tangible  Collateral  is damaged  beyond  repair,  lost,  totally  destroyed  or
confiscated  (an "Event of Loss") and such  Collateral had a value prior to such
Event of Loss of  $25,000.00  or more,  then, on or before the first to occur of
(i) 90 days after the occurrence of such Event of Loss, or (ii) 10 Business Days
after the date on which  either  Grantor or MLBFS shall  receive any proceeds of
insurance on account of such Event of Loss, or any  underwriter  of insurance on
such tangible  Collateral shall advise either Grantor or MLBFS that it disclaims
liability in respect of such Event of Loss,  Grantor shall, at Grantor's option,
either  replace  the  Collateral  subject to such Event of Loss with  comparable
Collateral  free of all liens other than Permitted Liens (in which event Grantor
shall be entitled to utilize the  proceeds of insurance on account of such Event
of Loss for such purpose, and may retain any excess proceeds of such insurance),
or pay to MLBFS on account of the Obligations an amount equal to the actual cash
value of such  Collateral  as  determined  by either  the  applicable  insurance
company's  payment (plus any applicable  deductible) or, in absence of insurance
company  payment,  as  reasonably  determined  by  MLBFS.   Notwithstanding  the
foregoing,  if at the  time of  occurrence  of such  Event  of Loss or any  time
thereafter  prior to replacement or payment,  as aforesaid,  an Event of Default
shall have  occurred  and be  continuing  hereunder,  then MLBFS may at its sole
option, exercisable at any time while such Event of Default shall be continuing,
require  Grantor to either replace such  Collateral or make a payment on account
of the Obligations, as aforesaid.

     (h)  Sales  and  Collections.  So long as no Event of  Default  shall  have
occurred and be continuing,  Grantor may in the ordinary course of its business:
(i) sell any Inventory  normally  held by Grantor for sale,  (ii) use or consume
any materials and supplies normally held by Grantor for use or consumption,  and
(iii) collect all of its  Accounts.  Grantor shall take such action with respect
to protection of its Inventory and the other  Collateral  and the  collection of
its Accounts as MLBFS may from time to time reasonably request.

     (i) Account  Schedules.  Upon the request of MLBFS, made now or at any time
or times  hereafter,  Grantor shall  deliver to MLBFS,  in addition to the other
information required hereunder, a schedule identifying, for each Account and all
Chattel  Paper  subject to MLBFS'  security  interests  hereunder,  each Account
Debtor by name and address and amount,  invoice number and date of each invoice.
Grantor shall furnish to MLBFS such additional  information  with respect to the
Collateral,  and  amounts  received  by  Grantor  as  proceeds  of  any  of  the
Collateral, as MLBFS may from time to time reasonably request.

     (j) Location.  Except for movements in the ordinary course of its business,
Grantor  shall give MLBFS 30 days'  prior  written  notice of the  placing at or
movement of any tangible  Collateral  to any  location  other than a Location of
Tangible  Collateral.  In no event shall  Grantor  cause or permit any  tangible
Collateral  to be removed  from the United  States  without  the  express  prior
written consent of MLBFS.

     (k) Alterations and  Maintenance.  Except upon the prior written consent of
MLBFS, Grantor shall not make or permit any material alterations to any tangible
Collateral which might materially  reduce or impair its market value or utility.
Grantor shall at all times keep the tangible  Collateral  in good  condition and
repair,  reasonably wear and tear obsolescence  excepted, and shall pay or cause
to be paid all  obligations  arising  from the  repair and  maintenance  of such
Collateral, as well as all obligations with respect to each Location of Tangible
Collateral,  except for any such obligations  being contested by Grantor in good
faith by appropriate proceedings.


3. REPRESENTATIONS AND WARRANTIES

Grantor represents and warrants to MLBFS that:

     (a)  Organization.  Grantor is a  corporation  duly  organized  and validly
existing  in good  standing  under  the laws of the  State of  Delaware,  and is
qualified  to do  business  and in good  standing  in each other state where the
nature of its  business  or the  property  owned by it make  such  qualification
necessary.

     (b)  Execution,  Delivery  and  Performance.  The  execution,  delivery and
performance  by  Grantor  of this  Agreement  have been duly  authorized  by all
requisite  action, do not and will not violate or conflict with any law or other
governmental  requirement,  or any of the  agreements,  instruments or documents
which formed or governed Grantor,  and do not and will not breach or violate any
of the  provisions  of, and will not result in a default by Grantor  under,  any
other agreement, instrument or document to which it is a party or by which it or
its properties are bound.

     (c) Notice or Consent. Except as may have been given or obtained, no notice
to or consent or approval of any  governmental  body or authority or other third
party whatsoever (including, without limitation, any other creditor) is required
in connection  with the  execution,  delivery or  performance by Grantor of this
Agreement.

     (d) Valid and  Binding.  This  Agreement  is the legal,  valid and  binding
obligation  of Grantor,  enforceable  against it in  accordance  with its terms,
except as  enforceability  may be limited by  bankruptcy  and other similar laws
affecting the rights of creditors generally or by general principles of equity.

     (e)  Financial  Statements.  Except as  expressly  set forth in  Grantor 's
financial  statements,  all financial  statements of Grantor  furnished to MLBFS
have been prepared in conformity with generally accepted accounting  principles,
consistently  applied,  are true and correct,  and fairly  present the financial
condition  of it as at such  dates and the  results  of its  operations  for the
periods  then ended;  and since the most recent date  covered by such  financial
statements,  there has been no  material  adverse  change in any such  financial
condition or operation.

     (f) Litigation,  etc. Except as previously disclosed through Customer's SEC
filings, no litigation, arbitration, administrative or governmental proceedings
are pending or threatened against Grantor, which would, if adversely determined,
materially and adversely affect the financial condition or continued operations
of Grantor, or the liens and security interests of MLBFS hereunder.

     (g) Taxes. All federal, state and local tax returns, reports and statements
required  to  be  filed  by  Grantor  have  been  filed  with  the   appropriate
governmental  agencies and all taxes due and payable by Grantor have been timely
paid  (except  to the  extent  that  any  such  failure  to file or pay will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder or the financial condition or continued operations of Grantor).

     (h)  Collateral.  Grantor has good and marketable  title to the Collateral,
subject to  immaterial  imperfections  in title,  and,  except for any Permitted
Liens:  (i) none of the  Collateral  is  subject  to any  lien,  encumbrance  or
security  interest,  and (ii) upon the  filing of all  Uniform  Commercial  Code
financing  statements  executed by Grantor with respect to the  Collateral  or a
copy of this Agreement in the appropriate  jurisdiction(s) and/or the completion
of any other action  required by applicable  law to perfect is lien and security
interests,  MLBFS  will  have  valid and  perfected  first  liens  and  security
interests upon all of the Collateral.

     Each of the foregoing  representations  and warranties has been and will be
relied upon as an  inducement to MLBFS to advance funds or extend or continue to
extend  credit to  Customer,  and is  continuing  and shall be deemed  remade by
Grantor  concurrently  with each such advance or extension of credit by MLBFS to
Customer.


4. FINANCIAL AND OTHER INFORMATION

     Grantor  covenants  and agrees  that  Grantor  will  furnish or cause to be
furnished to MLBFS during the term of this  Agreement  such  financial and other
information  as may be required  by the Loan  Agreements  or any other  document
evidencing the Obligations or as MLBFS may from time to time reasonably  request
relating to Grantor or the Collateral.

5. OTHER COVENANTS

Grantor further agrees during the term of this Agreement that:

     (a) Financial Records; Inspection.  Grantor will: (i) maintain complete and
accurate books and records at its principal place of business,  and maintain all
of its financial  records in a manner  consistent with the financial  statements
heretofore  furnished  to  MLBFS,  or  prepared  on such  other  basis as may be
approved  in  writing by MLBFS;  and (ii)  permit  MLBFS or its duly  authorized
representatives,  upon reasonable notice and at reasonable times, to inspect its
properties (both real and personal), operations, books and records.

     (b)  Taxes.  Grantor  will pay when due all  taxes,  assessments  and other
governmental  charges,  howsoever  designated,  and all  other  liabilities  and
obligations,  except  to the  extent  that  any  such  failure  to pay  will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (c) Compliance With Laws and Agreements.  Grantor will not violate any law,
regulation or other governmental requirement, any judgment or order of any court
or governmental agency or authority, or any agreement, instrument or document to
which  it is a party  or by  which  it is  bound,  if any  such  violation  will
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (d)  Notification  By  Grantor.  Grantor  shall  provide  MLBFS with prompt
written notification of: (i) any Default;  (ii) any materially adverse change in
the business,  financial  condition or  operations  of Customer or Grantor;  and
(iii) any information which indicates that any financial  statements of Customer
or  Grantor  fail in any  material  respect  to  present  fairly  the  financial
condition  and  results  of  operations   purported  to  be  presented  in  such
statements. Each notification by Grantor pursuant hereto shall specify the event
or information causing such notification,  and, to the extent applicable,  shall
specify the steps being taken to rectify or remedy such event or information.

     (e) Notice of Change  Grantor  shall give MLBFS not less than 30 days prior
written  notice of any change in the name  (including  any  fictitious  name) or
principal place of business of Grantor.

     (f)  Continuity.  Except  upon the prior  written  consent of MLBFS,  which
consent will not be unreasonably  withheld:  (i) Grantor shall not be a party to
any merger or  consolidation  with,  or  purchase  or  otherwise  acquire all or
substantially  all of the assets of, or any material stock,  partnership,  joint
venture or other equity interest in, any person or entity, or sell,  transfer or
lease all or any substantial part of its assets, if any such action would result
in either: (A) a material change in the principal business, ownership or control
of Grantor,  or (B) a material  adverse  change in the  financial  condition  or
operations  of Grantor;  (ii)  Grantor  shall  preserve its  existence  and good
standing in the  jurisdiction(s)  of establishment and operation;  (iii) Grantor
shall not  engage in any  material  business  substantially  different  from its
business in effect as of the date of  application  by  Customer  for credit from
MLBFS,  or cease  operating any such material  business;  (iv) Grantor shall not
cause or permit any other  person or entity to assume or succeed to any material
business or  operations  of Grantor;  and (iv) Grantor shall not cause or permit
any material change in its controlling ownership.


6. EVENTS OF DEFAULT

     The occurrence of any of the following events shall constitute an "Event of
Default" under this Agreement:

     (a) Event of Default  Under any Loan  Agreement.  An Event of Default shall
occur under the terms of any of the Loan Agreements.

     (b)  Failure  to  Perform.  Grantor  shall  default in the  performance  or
observance  of any covenant or agreement on its part to be performed or observed
under this  Agreement  (not  constituting  an Event of  Default  under any other
clause of this  Section),  and such default  shall  continue  unremedied  for 10
Business  Days after  written  notice  thereof shall have been given by MLBFS to
Grantor.

     (c) Breach of  Warranty.  Any  representation  or warranty  made by Grantor
contained in this  Agreement  shall at any time prove to have been  incorrect in
any material respect when made.

     (d) Default Under Other Agreement. A default or Event of Default by Grantor
shall occur under the terms of any other agreement,  instrument or document with
or intended  for the benefit of MLBFS,  Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated  ("MLPF&S")  or any of their  affiliates,  and any required  notice
shall have been given and required passage of time shall have elapsed.

     (e) Seizure or Abuse of Collateral.  The  Collateral,  or any material part
thereof,  shall  be or  become  subject  to any  levy,  attachment,  seizure  or
confiscation which is not released within 10 Business Days.

     (f) Bankruptcy Event. Any Bankruptcy Event shall occur.

     (g) Material Impairment. Any event shall occur which shall reasonably cause
MLBFS to in good faith  believe that the prospect of payment or  performance  by
Grantor  has  been  materially  impaired.  The  existence  of  such  a  material
impairment shall be determined in a manner consistent with the intent of Section
1-208 of the UCC.

     (h)  Acceleration of Debt to Other  Creditors.  Any event shall occur which
results in the  acceleration of the maturity of any  indebtedness of $100,000.00
or  more  of  Grantor  to  another  creditor  under  any  indenture,  agreement,
undertaking, or otherwise.


7. REMEDIES

     (a) Remedies Upon Default Upon the occurrence and during the continuance of
any Event of Default,  MLBFS may at its sole option do any one or more or all of
the  following,  at such  time  and in  such  order  as  MLBFS  may in its  sole
discretion choose:

     (i) Acceleration. MLBFS may declare all Obligations to be forthwith due and
payable,  whereupon  all such  amounts  shall be  immediately  due and  payable,
without presentment,  demand for payment,  protest and notice of protest, notice
of dishonor,  notice of  acceleration,  notice of intent to  accelerate or other
notice or  formality  of any kind,  all of which are  hereby  expressly  waived;
provided,  however,  that  upon  the  occurrence  of any  Bankruptcy  Event  all
Obligations shall automatically become due and payable without any action on the
part of MLBFS.

     (ii) Exercise Rights of Secured Party. MLBFS may exercise any or all of the
remedies of a secured party under applicable law, including, but not limited to,
the UCC, and any or all of its other rights and remedies under this Agreement.

     (iii) Possession. MLBFS may require Grantor to make the Collateral and the
records pertaining to the Collateral available to MLBFS at a place designated by
MLBFS which is reasonably convenient to Grantor, or may take possession of the
Collateral and the records pertaining to the Collateral without the use of any
judicial process and without any prior notice to Grantor.

     (iv) Sale. MLBFS may sell any or all of the Collateral at public or private
sale upon such terms and  conditions as MLBFS may  reasonably  deem proper,  and
MLBFS may purchase any  Collateral at any such public sale; and the net proceeds
of any such public or private sale and all other amounts  actually  collected or
received  by MLBFS  pursuant  hereto,  after  deducting  all costs and  expenses
incurred at any time in the collection of the Obligations and in the protection,
collection  and sale of the  Collateral,  will be applied to the  payment of the
Obligations,  with any remaining proceeds paid to Grantor or whoever else may be
entitled thereto, and with Customer and each guarantor of Customer's obligations
remaining  jointly and severally  liable for any amount  remaining  unpaid after
such application.

     (v) Delivery of Cash,  Checks,  Etc. MLBFS may require Grantor to forthwith
upon  receipt,  transmit  and deliver to MLBFS in the form  received,  all cash,
checks,  drafts  and  other  instruments  for the  payment  of  money  (properly
endorsed,  where  required,  so that such items may be collected by MLBFS) which
may be  received  by  Grantor  at any  time in full or  partial  payment  of any
Collateral,  and require that Grantor not  commingle any such items which may be
so received by Grantor  with any other of its funds or property but instead hold
them separate and apart and in trust for MLBFS until delivery is made to MLBFS.

     (vi)  Notification of Account Debtors.  MLBFS may notify any Account Debtor
that its  Account or Chattel  Paper has been  assigned  to MLBFS and direct such
Account Debtor to make payment  directly to MLBFS of all amounts due or becoming
due with respect to such Account or Chattel Paper; and MLBFS may enforce payment
and collect, by legal proceedings or otherwise, such Account or Chattel Paper.


     (vii) Control of Collateral. MLBFS may otherwise take control in any lawful
manner of any cash or non-cash items of payment or proceeds of Collateral and of
any rejected,  returned, stopped in transit or repossessed goods included in the
Collateral and endorse Grantor name on any item of payment on or proceeds of the
Collateral,   and,  in  connection  therewith,   MLBFS  may  notify  the  postal
authorities  to change the address for delivery of mail  addressed to Grantor to
such address as MLBFS may designate.

     (b) Set-Off.  MLBFS shall have the further  right upon the  occurrence  and
during the continuance of an Event of Default to set-off,  appropriate and apply
toward payment of any of the Obligations,  in such order of application as MLBFS
may from  time to time and at any  time  elect,  any  cash,  credits,  deposits,
accounts,  financial  assets,  investment  property,  securities  and any  other
property  of Grantor  which is in transit  to or in the  possession,  custody or
control of MLBFS, MLPF&S or any agent,  bailee, or affiliate of MLBFS or MLPF&S.
Grantor hereby  collaterally  assigns and grants to MLBFS a security interest in
all such property as additional Collateral.

     (c)  Power of  Attorney.  Effective  upon the  occurrence  and  during  the
continuance of an Event of Default, Grantor hereby irrevocably appoints MLBFS as
its  attorney-in-fact,  with full power of substitution,  in its place and stead
and in its name or in the name of MLBFS,  to from  time to time in  MLBFS'  sole
discretion  take any action and to execute any  instrument  which MLBFS may deem
necessary or advisable to accomplish the purposes of this Agreement,  including,
but not limited to, to receive, endorse and collect all checks, drafts and other
instruments  for the  payment of money made  payable to Grantor  included in the
Collateral.

     (d) Remedies are Severable and Cumulative. All rights and remedies of MLBFS
herein are  severable  and  cumulative  and in addition to all other  rights and
remedies  available at law or in equity,  and any one or more of such rights and
remedies may be exercised  simultaneously  or successively.  Any notice required
under this  Agreement or under  applicable  law shall be deemed  reasonably  and
properly  given to Grantor if given at the  address and by any of the methods of
giving notice set forth in this Agreement at least 5 Business Days before taking
any action specified in such notice.

     (e) Notices.  To the fullest extent  permitted by applicable  law,  Grantor
hereby irrevocably waives and releases MLBFS of and from any and all liabilities
and  penalties  for  failure  of MLBFS to  comply  with any  statutory  or other
requirement  imposed upon MLBFS relating to notices of sale,  holding of sale or
reporting  of  any  sale,  and  Grantor  waives  all  rights  of  redemption  or
reinstatement  from any such sale.  MLBFS  shall have the right to  postpone  or
adjourn any sale or other  disposition  of Collateral at any time without giving
notice of any such postponed or adjourned date. In the event MLBFS seeks to take
possession of any or all of the  Collateral by court  process,  Grantor  further
irrevocably  waives to the  fullest  extent  permitted  by law any bonds and any
surety or  security  relating  thereto  required by any  statute,  court rule or
otherwise as an incident to such possession, and any demand for possession prior
to the commencement of any suit or action.


8. MISCELLANEOUS

     (a) Non-Waiver.  No failure or delay on the part of MLBFS in exercising any
right,  power or remedy  pursuant to this  Agreement  shall  operate as a waiver
thereof,  and no single or partial  exercise of any such right,  power or remedy
shall  preclude any other or further  exercise  thereof,  or the exercise of any
other  right,  power or  remedy.  Neither  any waiver of any  provision  of this
Agreement,  nor any  consent to any  departure  by Grantor  therefrom,  shall be
effective unless the same shall be in writing and signed by MLBFS. Any waiver of
any provision of this Agreement and any consent to any departure by Grantor from
the terms of this Agreement shall be effective only in the specific instance and
for the specific purpose for which given. Except as otherwise expressly provided
herein,  no notice to or demand on Grantor shall in any case entitle  Grantor to
any other or further notice or demand in similar or other circumstances.

     (b)  Communications.  All  notices  and other  communications  required  or
permitted  hereunder  shall  be  in  writing,  and  shall  be  either  delivered
personally,  mailed  by  postage  prepaid  certified  mail or  sent  by  express
overnight  courier or by  facsimile.  Such notices and  communications  shall be
deemed to be given on the date of personal delivery,  facsimile  transmission or
actual  delivery of certified  mail,  or one  Business Day after  delivery to an
express  overnight  courier.  Unless  otherwise  specified  in a notice  sent or
delivered in accordance with the terms hereof,  notices and other communications
in writing shall be given to the parties  hereto at their  respective  addresses
set forth at the  beginning  of this  Agreement,  and, in the case of  facsimile
transmission,  to the parties at their respective  regular  facsimile  telephone
number.

     (c) Costs,  Expenses and Taxes.  Grantor shall pay or reimburse  MLBFS upon
demand for: (i) all Uniform  Commercial Code filing and search fees and expenses
incurred  by  MLBFS  in  connection   with  the   verification,   perfection  or
preservation of MLBFS' rights  hereunder or in the Collateral;  (ii) any and all
stamp,  transfer and other taxes and fees payable or determined to be payable in
connection with the execution,  delivery and/or recording of this Agreement; and
(iii) all reasonable fees and out-of-pocket expenses (including, but not limited
to,  reasonable  fees and  expenses  of outside  counsel)  incurred  by MLBFS in
connection  with the  enforcement  of this Agreement or the protection of MLBFS'
rights hereunder, excluding, however, salaries and expenses of MLBFS' employees.
The  obligations of Grantor under this paragraph shall survive the expiration or
termination of this Agreement and the discharge of the other Obligations.

     (d) Right to Perform  Obligations.  If Grantor  shall fail to do any act or
thing which it has covenanted to do under this  Agreement or any  representation
or  warranty  on the  part of  Grantor  contained  in this  Agreement  shall  be
breached,  MLBFS may,  in its sole  discretion,  after 5 Business  Days  written
notice is sent to Grantor (or such lesser  notice,  including  no notice,  as is
reasonable  under  the  circumstances),  do the  same or  cause it to be done or
remedy any such breach,  and may expend its funds for such purpose.  Any and all
reasonable  amounts so expended by MLBFS shall be  repayable to MLBFS by Grantor
upon  demand,  with  interest  at the  highest  "Interest  Rate"  under the Loan
Agreements or any document  incorporated into in any of the Loan Agreements,  or
the highest interest rate permitted by law, whichever is less, during the period
from  and  including  the date  funds  are so  expended  by MLBFS to the date of
repayment,  and any  such  amounts  due and  owing  MLBFS  shall  be  additional
Obligations. The payment or performance by MLBFS of any of Grantor's obligations
hereunder shall not relieve Grantor of said  obligations or of the  consequences
of having failed to pay or perform the same,  and shall not waive or be deemed a
cure of any Default.

(e) Further Assurances. Grantor agrees to do such further acts and things and to
execute and deliver to MLBFS such additional agreements, instruments and
documents as MLBFS may reasonably require or deem advisable to effectuate the
purposes of this Agreement, or to establish, perfect and maintain MLBFS'
security interests and liens upon the Collateral, including, but not limited to:
(i) executing financing statements or amendments thereto when and as reasonably
requested by MLBFS; and (ii) if in the reasonable judgment of MLBFS it is
required by local law, causing the owners and/or mortgagees of the real property
on which any Collateral may be located to execute and deliver to MLBFS waivers
or subordinations reasonably satisfactory to MLBFS with respect to any rights in
such Collateral.


     (f) Binding  Effect.  This Agreement  shall be binding upon Grantor and its
successors  and  assigns,  and  shall  inure to the  benefit  of  MLBFS  and its
successors and assigns.

     (g) Headings. Captions and section and paragraph headings in this Agreement
are  inserted  only as a  matter  of  convenience,  and  shall  not  affect  the
interpretation hereof.

     (h) Governing Law. This Agreement  shall be governed in all respects by the
laws of the State of Illinois.

     (i) Severability of Provisions.  Whenever possible,  each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable  law.  Any  provision  of  this  Agreement  which  is  prohibited  or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
only to the extent of such prohibition or unenforceability  without invalidating
the  remaining  provisions  of this  Agreement  or  affecting  the  validity  or
enforceability of such provision in any other jurisdiction.

     (j) Term. This Agreement  shall become  effective upon acceptance by MLBFS,
and, subject to the terms hereof, shall continue in effect so long thereafter as
either MLBFS shall be committed to advance funds or extend credit to Customer or
there shall be any Obligations outstanding.

     (k)   Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts which, when taken together, constitute one and the same agreement.

     (l) Jurisdiction; Waiver. GRANTOR acknowledges that this Agreement is being
accepted by MLBFS in partial  consideration  of MLBFS' right and option,  in its
sole discretion, to enforce this Agreement in either the State of Illinois or in
any other  jurisdiction  where GRANTOR or any collateral for the Obligations may
be located.  GRANTOR  IRREVOCABLY SUBMITS ITSELF to jurisdiction in the State of
Illinois and venue in any State or Federal  Court in the County of Cook for such
purposes, and GRANTOR waives any and all rights to contest said jurisdiction and
venue AND THE  CONVENIENCE  OF ANY SUCH FORUM,  AND ANY AND ALL RIGHTS TO REMOVE
SUCH ACTION FROM STATE TO FEDERAL  COURT.  GRANTOR  further waives any rights to
commence any action  against MLBFS in any  jurisdiction  except in the County of
Cook and State of Illinois.  MLBFS and GRANTOR hereby each  expressly  waive any
and all  rights to a trial by jury in any  action,  proceeding  or  counterclaim
brought BY either of the parties  against  the other  party with  respect to any
matter  relating  to,  arising  out of or in any way  connected  with  the  Loan
AgreementS,  this Agreement and/or any of the transactions which are the subject
matter of the Loan  AgreementS or this  Agreement.  GRANTOR  FURTHER  WAIVES THE
RIGHT TO BRING ANY NON-COMPULSORY COUNTERCLAIMS.

     (m)   Integration.   This   written   Agreement   constitutes   the  entire
understanding  and represents the full and final  agreement  between the parties
with  respect to the  subject  matter  hereof,  and may not be  contradicted  by
evidence of prior  written  agreements or prior,  contemporaneous  or subsequent
oral  agreements of the parties.  There are no unwritten oral  agreements of the
parties.  No  amendment or  modification  of this  Agreement  shall be effective
unless in a writing signed by both MLBFS and GRANTOR.

     IN WITNESS WHEREOF, this Agreement has been executed as of the day and year
first above written.

SANFORD BROWN COLLEGE, INC.


By: ____________________________________________________________________________
                  Signature (1)                      Signature (2)

--------------------------------------------------------------------------------
                  Printed Name                       Printed Name

--------------------------------------------------------------------------------
                  Title                              Title

Accepted at Chicago, Illinois:
MERRILL LYNCH BUSINESS FINANCIAL
SERVICES INC.


By: __________________________________________________________



                                    EXHIBIT A

     ATTACHED  TO AND HEREBY MADE A PART OF SECURITY  AGREEMENT  NO.  0103551501
BETWEEN  MERRILL  LYNCH  BUSINESS  FINANCIAL  SERVICES  INC.  AND SANFORD  BROWN
COLLEGE, INC.
================================================================================


Locations of Tangible Collateral:

1203 Smizer Mill Road
Fenton, MO 63026

3237 West Chain of Rocks Road
Granite City, IL  62040

75 Village Square
Hazelwood, MO  63042

3555 Franks Drive
St. Charles, MO  63301


                               SECURITY AGREEMENT
================================================================================

     Security  Agreement  ("Agreement")  dated as of  March  21,  2001,  between
COLORADO  TECHNICAL  UNIVERSITY,  INC. D/B/A COLORADO  TECHNICAL  UNIVERSITY,  a
corporation  organized  and  existing  under the laws of the  State of  Colorado
having its principal office at 4435 N. Chestnut  Street,  Colorado  Springs,  CO
80907  ("Grantor"),  and MERRILL  LYNCH  BUSINESS  FINANCIAL  SERVICES  INC.,  a
corporation  organized  and  existing  under the laws of the  State of  Delaware
having its  principal  office at 222 North  LaSalle  Street,  Chicago,  IL 60601
("MLBFS").

     In order to induce MLBFS to extend or continue to extend  credit to WHITMAN
EDUCATION  GROUP,  INC.  D/B/A WHITMAN  EDUCATION  GROUP F/K/A  WHITMAN  MEDICAL
CORPORATION  ("Customer")  under  the Loan  Agreements  (as  defined  below)  or
otherwise,  and for other  good and  valuable  consideration,  the  receipt  and
sufficiency of which is hereby acknowledged, Grantor hereby agrees with MLBFS as
follows:

1. DEFINITIONS

     (a)  Specific  Terms.  In  addition  to  terms  defined  elsewhere  in this
Agreement,  when used  herein  the  following  terms  shall  have the  following
meanings:

     (x) "Account  Debtor"  shall mean any party who is or may become  obligated
with respect to an Account or Chattel Paper.

     (xi) "Bankruptcy  Event" shall mean any of the following:  (A) a proceeding
under any bankruptcy,  reorganization,  arrangement, insolvency, readjustment of
debt or receivership law or statute shall be filed or consented to by Grantor or
Customer;  or (B) any such proceeding shall be filed against Grantor or Customer
and shall not be dismissed or withdrawn within sixty (60) days after filing;  or
(C)  Grantor or  Customer  shall make a general  assignment  for the  benefit of
creditors;  or (D) Grantor or Customer  shall  generally fail to pay or admit in
writing  its  inability  to pay its debts as they  become due; or (E) Grantor or
Customer shall be adjudicated a bankrupt or insolvent.

     (xii)  "Business  Day" shall mean any day other  than a  Saturday,  Sunday,
federal  holiday or other day on which the New York Stock  Exchange is regularly
closed.

     (xiii)  "Collateral"  shall  mean all  Accounts,  Chattel  Paper,  Contract
Rights, Inventory,  Equipment, Fixtures, General Intangibles,  Deposit Accounts,
Documents,  Instruments,  Financial  Assets and Investment  Property of Grantor,
howsoever  arising,  whether  now owned or  existing  or  hereafter  acquired or
arising, and wherever located;  together with all parts thereof (including spare
parts), all accessories and accessions thereto, all books and records (including
computer  records)  directly related thereto,  all proceeds thereof  (including,
without  limitation,  proceeds in the form of Accounts and insurance  proceeds),
and the additional collateral described in Section 7 (b) hereof.

     (xiv) "Default"  shall mean an "Event of Default",  as defined in Section 6
hereof, or any event which with the giving of notice, passage of time, or both,
would constitute such an Event of Default.

     (xv) "Loan  Agreement"  shall mean: (a) that certain TERM LOAN AND SECURITY
AGREEMENT  No.  0103551501  between  MLBFS  and  Customer,   together  with  all
agreements,  instruments and documents executed pursuant thereto,  as any or all
of the same may from time to time be or have been amended, restated, extended or
supplemented.

     (xvi) "Location of Tangible  Collateral"  shall mean the address of Grantor
set forth at the beginning of this Agreement, together with any other address or
addresses  set forth on any  exhibit  hereto  as being a  Location  of  Tangible
Collateral.


     (xvii)  "Obligations"  shall mean all  liabilities,  indebtedness and other
obligations  of  Customer  or Grantor to MLBFS,  howsoever  created,  arising or
evidenced,  whether  now  existing  or  hereafter  arising,  whether  direct  or
indirect,  absolute or contingent, due or to become due, primary or secondary or
joint or several,  and, without  limiting the foregoing,  shall include interest
accruing  after the filing of any  petition in  bankruptcy,  and all present and
future  liabilities,  indebtedness  and  obligations  of Customer under the Loan
Agreements  and the  agreements,  instruments  and documents  executed  pursuant
thereto, and of Grantor under this Agreement.

     (xviii)  "Permitted  Liens" shall mean with respect to the Collateral:  (A)
liens for current taxes not delinquent,  other  non-consensual  liens arising in
the ordinary  course of business for sums not due,  and, if MLBFS' rights to and
interest in the Collateral are not  materially and adversely  affected  thereby,
any such liens for taxes or other  non-consensual  liens arising in the ordinary
course of business being contested in good faith by appropriate proceedings; (B)
liens in favor of MLBFS; and (C) any other liens expressly  permitted in writing
by MLBFS.

     (b) Other Terms. Except as otherwise defined herein, all terms used in this
Agreement which are defined in the Uniform  Commercial Code of Illinois  ("UCC")
shall have the meanings set forth in the UCC.

2. COLLATERAL

     (a)  Pledge  of  Collateral.  To  secure  payment  and  performance  of the
Obligations,  Grantor hereby pledges, assigns, transfers and sets over to MLBFS,
and grants to MLBFS a first lien and  security  interest  in and upon all of the
Collateral, subject only to Permitted Liens.

     (b) Liens.  Except upon the prior written  consent of MLBFS,  Grantor shall
not create or permit to exist any lien, encumbrance or security interest upon or
with  respect  to any  Collateral  now owned or  hereafter  acquired  other than
Permitted Liens.

     (c)  Performance  of   Obligations.   Grantor  shall  perform  all  of  its
obligations  owing  on  account  of or with  respect  to the  Collateral  in all
material  respects;  it being  understood that nothing herein,  and no action or
inaction  by  MLBFS,  under  this  Agreement  or  otherwise,  shall be deemed an
assumption by MLBFS of any of Grantor's said obligations.

     (d) Notice of Certain Events.  Grantor shall give MLBFS immediate notice of
any  attachment,  lien,  judicial  process,  encumbrance  or claim  affecting or
involving $25,000.00 or more of the Collateral.

     (e) Indemnification Grantor shall indemnify, defend and save MLBFS harmless
from and against any and all claims, losses, costs, expenses (including, without
limitation,  reasonable  attorneys'  fees and expenses),  demands,  liabilities,
penalties,  fines and forfeitures of any nature whatsoever which may be asserted
against or incurred by MLBFS  arising out of or in any manner  occasioned by (i)
the ownership,  use, operation,  condition or maintenance of any Collateral,  or
(ii) any  failure  by  Grantor  to  perform  any of its  obligations  hereunder;
excluding,  however,  from said indemnity any such claims,  losses, etc. arising
out of the  willful  wrongful  act or active  gross  negligence  of MLBFS.  This
indemnity  shall survive the  expiration or  termination of this Agreement as to
all matters arising or accruing prior to such expiration or termination.

     (f) Insurance.  Grantor shall insure all of the tangible Collateral with an
insurer or insurers  reasonably  acceptable to MLBFS, under a policy or policies
of physical damage insurance  reasonably  acceptable to MLBFS providing that (i)
losses  will be  payable to MLBFS as its  interests  may  appear  pursuant  to a
Lender's Loss Payable endorsement , and (ii) MLBFS will receive not less than 10
days  prior  written  notice of any  cancellation;  and  containing  such  other
provisions as may be reasonably  required by MLBFS.  Grantor shall maintain such
other  insurance as may be required by law or otherwise  reasonably  required by
MLBFS.  Grantor  shall  furnish  MLBFS with a copy or  certificate  of each such
policy or policies and, prior to any expiration or cancellation, each renewal or
replacement thereof.


     (g)  Event of  Loss.  Grantor  shall at its  expense  promptly  repair  all
reasonably  repairable damage to any tangible Collateral.  In the event that any
tangible  Collateral  is damaged  beyond  repair,  lost,  totally  destroyed  or
confiscated  (an "Event of Loss") and such  Collateral had a value prior to such
Event of Loss of  $25,000.00  or more,  then, on or before the first to occur of
(i) 90 days after the occurrence of such Event of Loss, or (ii) 10 Business Days
after the date on which  either  Grantor or MLBFS shall  receive any proceeds of
insurance on account of such Event of Loss, or any  underwriter  of insurance on
such tangible  Collateral shall advise either Grantor or MLBFS that it disclaims
liability in respect of such Event of Loss,  Grantor shall, at Grantor's option,
either  replace  the  Collateral  subject to such Event of Loss with  comparable
Collateral  free of all liens other than Permitted Liens (in which event Grantor
shall be entitled to utilize the  proceeds of insurance on account of such Event
of Loss for such purpose, and may retain any excess proceeds of such insurance),
or pay to MLBFS on account of the Obligations an amount equal to the actual cash
value of such  Collateral  as  determined  by either  the  applicable  insurance
company's  payment (plus any applicable  deductible) or, in absence of insurance
company  payment,  as  reasonably  determined  by  MLBFS.   Notwithstanding  the
foregoing,  if at the  time of  occurrence  of such  Event  of Loss or any  time
thereafter  prior to replacement or payment,  as aforesaid,  an Event of Default
shall have  occurred  and be  continuing  hereunder,  then MLBFS may at its sole
option, exercisable at any time while such Event of Default shall be continuing,
require  Grantor to either replace such  Collateral or make a payment on account
of the Obligations, as aforesaid.

     (h)  Sales  and  Collections.  So long as no Event of  Default  shall  have
occurred and be continuing,  Grantor may in the ordinary course of its business:
(i) sell any Inventory  normally  held by Grantor for sale,  (ii) use or consume
any materials and supplies normally held by Grantor for use or consumption,  and
(iii) collect all of its  Accounts.  Grantor shall take such action with respect
to protection of its Inventory and the other  Collateral  and the  collection of
its Accounts as MLBFS may from time to time reasonably request.

     (i) Account  Schedules.  Upon the request of MLBFS, made now or at any time
or times  hereafter,  Grantor shall  deliver to MLBFS,  in addition to the other
information required hereunder, a schedule identifying, for each Account and all
Chattel  Paper  subject to MLBFS'  security  interests  hereunder,  each Account
Debtor by name and address and amount,  invoice number and date of each invoice.
Grantor shall furnish to MLBFS such additional  information  with respect to the
Collateral,  and  amounts  received  by  Grantor  as  proceeds  of  any  of  the
Collateral, as MLBFS may from time to time reasonably request.

     (j) Location.  Except for movements in the ordinary course of its business,
Grantor  shall give MLBFS 30 days'  prior  written  notice of the  placing at or
movement of any tangible  Collateral  to any  location  other than a Location of
Tangible  Collateral.  In no event shall  Grantor  cause or permit any  tangible
Collateral  to be removed  from the United  States  without  the  express  prior
written consent of MLBFS.

     (k) Alterations and  Maintenance.  Except upon the prior written consent of
MLBFS, Grantor shall not make or permit any material alterations to any tangible
Collateral which might materially  reduce or impair its market value or utility.
Grantor shall at all times keep the tangible  Collateral  in good  condition and
repair, reasonable wear and tear obsolescence excepted and shall pay or cause to
be paid  all  obligations  arising  from  the  repair  and  maintenance  of such
Collateral, as well as all obligations with respect to each Location of Tangible
Collateral,  except for any such obligations  being contested by Grantor in good
faith by appropriate proceedings.


3. REPRESENTATIONS AND WARRANTIES

Grantor represents and warrants to MLBFS that:

     (a)  Organization.  Grantor is a  corporation  duly  organized  and validly
existing  in good  standing  under  the laws of the  State of  Colorado,  and is
qualified  to do  business  and in good  standing  in each other state where the
nature of its  business  or the  property  owned by it make  such  qualification
necessary.

     (b)  Execution,  Delivery  and  Performance.  The  execution,  delivery and
performance  by  Grantor  of this  Agreement  have been duly  authorized  by all
requisite  action, do not and will not violate or conflict with any law or other
governmental  requirement,  or any of the  agreements,  instruments or documents
which formed or governed Grantor,  and do not and will not breach or violate any
of the  provisions  of, and will not result in a default by Grantor  under,  any
other agreement, instrument or document to which it is a party or by which it or
its properties are bound.

     (c) Notice or Consent. Except as may have been given or obtained, no notice
to or consent or approval of any  governmental  body or authority or other third
party whatsoever (including, without limitation, any other creditor) is required
in connection  with the  execution,  delivery or  performance by Grantor of this
Agreement.

     (d) Valid and  Binding.  This  Agreement  is the legal,  valid and  binding
obligation  of Grantor,  enforceable  against it in  accordance  with its terms,
except as  enforceability  may be limited by  bankruptcy  and other similar laws
affecting the rights of creditors generally or by general principles of equity.

     (e)  Financial  Statements.  Except as  expressly  set forth in  Grantor 's
financial  statements,  all financial  statements of Grantor  furnished to MLBFS
have been prepared in conformity with generally accepted accounting  principles,
consistently  applied,  are true and correct,  and fairly  present the financial
condition  of it as at such  dates and the  results  of its  operations  for the
periods  then ended;  and since the most recent date  covered by such  financial
statements,  there has been no  material  adverse  change in any such  financial
condition or operation.

     (f) Litigation, etc. Except as previously disclosed through Customer's SEC
filings, no litigation, arbitration, administrative or governmental proceedings
are pending or threatened against Grantor, which would, if adversely determined,
materially and adversely affect the financial condition or continued operations
of Grantor, or the liens and security interests of MLBFS hereunder.

     (g) Taxes. All federal, state and local tax returns, reports and statements
required  to  be  filed  by  Grantor  have  been  filed  with  the   appropriate
governmental  agencies and all taxes due and payable by Grantor have been timely
paid  (except  to the  extent  that  any  such  failure  to file or pay will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder or the financial condition or continued operations of Grantor).

     (h)  Collateral.  Grantor has good and marketable  title to the Collateral,
subject tp  immaterial  imperfections  in title,  and,  except for any Permitted
Liens:  (i) none of the  Collateral  is  subject  to any  lien,  encumbrance  or
security  interest,  and (ii) upon the  filing of all  Uniform  Commercial  Code
financing  statements  executed by Grantor with respect to the  Collateral  or a
copy of this Agreement in the appropriate  jurisdiction(s) and/or the completion
of any other action  required by applicable  law to perfect is lien and security
interests,  MLBFS  will  have  valid and  perfected  first  liens  and  security
interests upon all of the Collateral.

     Each of the foregoing  representations  and warranties has been and will be
relied upon as an  inducement to MLBFS to advance funds or extend or continue to
extend  credit to  Customer,  and is  continuing  and shall be deemed  remade by
Grantor  concurrently  with each such advance or extension of credit by MLBFS to
Customer.


4. FINANCIAL AND OTHER INFORMATION

     Grantor  covenants  and agrees  that  Grantor  will  furnish or cause to be
furnished to MLBFS during the term of this  Agreement  such  financial and other
information  as may be required  by the Loan  Agreements  or any other  document
evidencing the Obligations or as MLBFS may from time to time reasonably  request
relating to Grantor or the Collateral.

5. OTHER COVENANTS

     Grantor further agrees during the term of this Agreement that:

     (a) Financial Records; Inspection.  Grantor will: (i) maintain complete and
accurate books and records at its principal place of business, and maintain all
of its financial records in a manner consistent with the financial statements
heretofore furnished to MLBFS, or prepared on such other basis as may be
approved in writing by MLBFS; and (ii) permit MLBFS or its duly authorized
representatives, upon reasonable notice and at reasonable times, to inspect its
properties (both real and personal), operations, books and records.

     (b)  Taxes.  Grantor  will pay when due all  taxes,  assessments  and other
governmental  charges,  howsoever  designated,  and all  other  liabilities  and
obligations,  except  to the  extent  that  any  such  failure  to pay  will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (c) Compliance With Laws and Agreements.  Grantor will not violate any law,
regulation or other governmental requirement, any judgment or order of any court
or governmental agency or authority, or any agreement, instrument or document to
which  it is a party  or by  which  it is  bound,  if any  such  violation  will
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (d)  Notification  By  Grantor.  Grantor  shall  provide  MLBFS with prompt
written notification of: (i) any Default;  (ii) any materially adverse change in
the business,  financial  condition or  operations  of Customer or Grantor;  and
(iii) any information which indicates that any financial  statements of Customer
or  Grantor  fail in any  material  respect  to  present  fairly  the  financial
condition  and  results  of  operations   purported  to  be  presented  in  such
statements. Each notification by Grantor pursuant hereto shall specify the event
or information causing such notification,  and, to the extent applicable,  shall
specify the steps being taken to rectify or remedy such event or information.

     (e) Notice of Change  Grantor  shall give MLBFS not less than 30 days prior
written  notice of any change in the name  (including  any  fictitious  name) or
principal place of business of Grantor.

     (f)  Continuity.  Except  upon the prior  written  consent of MLBFS,  which
consent will not be unreasonably  withheld:  (i) Grantor shall not be a party to
any merger or  consolidation  with,  or  purchase  or  otherwise  acquire all or
substantially  all of the assets of, or any material stock,  partnership,  joint
venture or other equity interest in, any person or entity, or sell,  transfer or
lease all or any substantial part of its assets, if any such action would result
in either: (A) a material change in the principal business, ownership or control
of Grantor,  or (B) a material  adverse  change in the  financial  condition  or
operations  of Grantor;  (ii)  Grantor  shall  preserve its  existence  and good
standing in the  jurisdiction(s)  of establishment and operation;  (iii) Grantor
shall not  engage in any  material  business  substantially  different  from its
business in effect as of the date of  application  by  Customer  for credit from
MLBFS,  or cease  operating any such material  business;  (iv) Grantor shall not
cause or permit any other  person or entity to assume or succeed to any material
business or  operations  of Grantor;  and (iv) Grantor shall not cause or permit
any material change in its controlling ownership.


6. EVENTS OF DEFAULT

     The occurrence of any of the following events shall constitute an "Event of
Default" under this Agreement:

     (a) Event of Default  Under any Loan  Agreement.  An Event of Default shall
occur under the terms of any of the Loan Agreements.

     (b)  Failure  to  Perform.  Grantor  shall  default in the  performance  or
observance  of any covenant or agreement on its part to be performed or observed
under this  Agreement  (not  constituting  an Event of  Default  under any other
clause of this  Section),  and such default  shall  continue  unremedied  for 10
Business  Days after  written  notice  thereof shall have been given by MLBFS to
Grantor.

     (c) Breach of  Warranty.  Any  representation  or warranty  made by Grantor
contained in this  Agreement  shall at any time prove to have been  incorrect in
any material respect when made.

     (d) Default Under Other Agreement. A default or Event of Default by Grantor
shall occur under the terms of any other agreement,  instrument or document with
or intended  for the benefit of MLBFS,  Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated  ("MLPF&S")  or any of their  affiliates,  and any required  notice
shall have been given and required passage of time shall have elapsed.

     (e) Seizure or Abuse of Collateral.  The  Collateral,  or any material part
thereof,  shall  be or  become  subject  to any  levy,  attachment,  seizure  or
confiscation which is not released within 10 Business Days.

     (f) Bankruptcy Event. Any Bankruptcy Event shall occur.

     (g) Material Impairment. Any event shall occur which shall reasonably cause
MLBFS to in good faith  believe that the prospect of payment or  performance  by
Grantor  has  been  materially  impaired.  The  existence  of  such  a  material
impairment shall be determined in a manner consistent with the intent of Section
1-208 of the UCC.

     (h)  Acceleration of Debt to Other  Creditors.  Any event shall occur which
results in the  acceleration of the maturity of any  indebtedness of $100,000.00
or  more  of  Grantor  to  another  creditor  under  any  indenture,  agreement,
undertaking, or otherwise.

7. REMEDIES

     (a) Remedies Upon Default Upon the occurrence and during the continuance of
any Event of Default,  MLBFS may at its sole option do any one or more or all of
the  following,  at such  time  and in  such  order  as  MLBFS  may in its  sole
discretion choose:

     (i) Acceleration. MLBFS may declare all Obligations to be forthwith due and
payable,  whereupon  all such  amounts  shall be  immediately  due and  payable,
without presentment,  demand for payment,  protest and notice of protest, notice
of dishonor,  notice of  acceleration,  notice of intent to  accelerate or other
notice or  formality  of any kind,  all of which are  hereby  expressly  waived;
provided,  however,  that  upon  the  occurrence  of any  Bankruptcy  Event  all
Obligations shall automatically become due and payable without any action on the
part of MLBFS.

     (ii) Exercise Rights of Secured Party. MLBFS may exercise any or all of the
remedies of a secured party under applicable law, including, but not limited to,
the UCC, and any or all of its other rights and remedies under this Agreement.


     (iii) Possession.  MLBFS may require Grantor to make the Collateral and the
records pertaining to the Collateral available to MLBFS at a place designated by
MLBFS which is reasonably  convenient to Grantor,  or may take possession of the
Collateral and the records  pertaining to the Collateral  without the use of any
judicial process and without any prior notice to Grantor.

     (iv) Sale. MLBFS may sell any or all of the Collateral at public or private
sale upon such terms and  conditions as MLBFS may  reasonably  deem proper,  and
MLBFS may purchase any  Collateral at any such public sale; and the net proceeds
of any such public or private sale and all other amounts  actually  collected or
received  by MLBFS  pursuant  hereto,  after  deducting  all costs and  expenses
incurred at any time in the collection of the Obligations and in the protection,
collection  and sale of the  Collateral,  will be applied to the  payment of the
Obligations,  with any remaining proceeds paid to Grantor or whoever else may be
entitled thereto, and with Customer and each guarantor of Customer's obligations
remaining  jointly and severally  liable for any amount  remaining  unpaid after
such application.

     (v) Delivery of Cash,  Checks,  Etc. MLBFS may require Grantor to forthwith
upon  receipt,  transmit  and deliver to MLBFS in the form  received,  all cash,
checks,  drafts  and  other  instruments  for the  payment  of  money  (properly
endorsed,  where  required,  so that such items may be collected by MLBFS) which
may be  received  by  Grantor  at any  time in full or  partial  payment  of any
Collateral,  and require that Grantor not  commingle any such items which may be
so received by Grantor  with any other of its funds or property but instead hold
them separate and apart and in trust for MLBFS until delivery is made to MLBFS.

     (vi)  Notification of Account Debtors.  MLBFS may notify any Account Debtor
that its  Account or Chattel  Paper has been  assigned  to MLBFS and direct such
Account Debtor to make payment  directly to MLBFS of all amounts due or becoming
due with respect to such Account or Chattel Paper; and MLBFS may enforce payment
and collect, by legal proceedings or otherwise, such Account or Chattel Paper.

     (vii) Control of Collateral. MLBFS may otherwise take control in any lawful
manner of any cash or non-cash items of payment or proceeds of Collateral and of
any rejected,  returned, stopped in transit or repossessed goods included in the
Collateral and endorse Grantor name on any item of payment on or proceeds of the
Collateral,   and,  in  connection  therewith,   MLBFS  may  notify  the  postal
authorities  to change the address for delivery of mail  addressed to Grantor to
such address as MLBFS may designate.

     (b) Set-Off.  MLBFS shall have the further  right upon the  occurrence  and
during the continuance of an Event of Default to set-off,  appropriate and apply
toward payment of any of the Obligations,  in such order of application as MLBFS
may from  time to time and at any  time  elect,  any  cash,  credits,  deposits,
accounts,  financial  assets,  investment  property,  securities  and any  other
property  of Grantor  which is in transit  to or in the  possession,  custody or
control of MLBFS, MLPF&S or any agent,  bailee, or affiliate of MLBFS or MLPF&S.
Grantor hereby  collaterally  assigns and grants to MLBFS a security interest in
all such property as additional Collateral.


     (c)  Power of  Attorney.  Effective  upon the  occurrence  and  during  the
continuance of an Event of Default, Grantor hereby irrevocably appoints MLBFS as
its  attorney-in-fact,  with full power of substitution,  in its place and stead
and in its name or in the name of MLBFS,  to from  time to time in  MLBFS'  sole
discretion  take any action and to execute any  instrument  which MLBFS may deem
necessary or advisable to accomplish the purposes of this Agreement,  including,
but not limited to, to receive, endorse and collect all checks, drafts and other
instruments  for the  payment of money made  payable to Grantor  included in the
Collateral.

     (d) Remedies are Severable and Cumulative. All rights and remedies of MLBFS
herein are  severable  and  cumulative  and in addition to all other  rights and
remedies  available at law or in equity,  and any one or more of such rights and
remedies may be exercised  simultaneously  or successively.  Any notice required
under this  Agreement or under  applicable  law shall be deemed  reasonably  and
properly  given to Grantor if given at the  address and by any of the methods of
giving notice set forth in this Agreement at least 5 Business Days before taking
any action specified in such notice.

     (e) Notices.  To the fullest extent  permitted by applicable  law,  Grantor
hereby irrevocably waives and releases MLBFS of and from any and all liabilities
and  penalties  for  failure  of MLBFS to  comply  with any  statutory  or other
requirement  imposed upon MLBFS relating to notices of sale,  holding of sale or
reporting  of  any  sale,  and  Grantor  waives  all  rights  of  redemption  or
reinstatement  from any such sale.  MLBFS  shall have the right to  postpone  or
adjourn any sale or other  disposition  of Collateral at any time without giving
notice of any such postponed or adjourned date. In the event MLBFS seeks to take
possession of any or all of the  Collateral by court  process,  Grantor  further
irrevocably  waives to the  fullest  extent  permitted  by law any bonds and any
surety or  security  relating  thereto  required by any  statute,  court rule or
otherwise as an incident to such possession, and any demand for possession prior
to the commencement of any suit or action.

8. MISCELLANEOUS

     (a) Non-Waiver.  No failure or delay on the part of MLBFS in exercising any
right,  power or remedy  pursuant to this  Agreement  shall  operate as a waiver
thereof,  and no single or partial  exercise of any such right,  power or remedy
shall  preclude any other or further  exercise  thereof,  or the exercise of any
other  right,  power or  remedy.  Neither  any waiver of any  provision  of this
Agreement,  nor any  consent to any  departure  by Grantor  therefrom,  shall be
effective unless the same shall be in writing and signed by MLBFS. Any waiver of
any provision of this Agreement and any consent to any departure by Grantor from
the terms of this Agreement shall be effective only in the specific instance and
for the specific purpose for which given. Except as otherwise expressly provided
herein,  no notice to or demand on Grantor shall in any case entitle  Grantor to
any other or further notice or demand in similar or other circumstances.

     (b)  Communications.  All  notices  and other  communications  required  or
permitted  hereunder  shall  be  in  writing,  and  shall  be  either  delivered
personally,  mailed  by  postage  prepaid  certified  mail or  sent  by  express
overnight  courier or by  facsimile.  Such notices and  communications  shall be
deemed to be given on the date of personal delivery,  facsimile  transmission or
actual  delivery of certified  mail,  or one  Business Day after  delivery to an
express  overnight  courier.  Unless  otherwise  specified  in a notice  sent or
delivered in accordance with the terms hereof,  notices and other communications
in writing shall be given to the parties  hereto at their  respective  addresses
set forth at the  beginning  of this  Agreement,  and, in the case of  facsimile
transmission,  to the parties at their respective  regular  facsimile  telephone
number.


     (c) Costs,  Expenses and Taxes.  Grantor shall pay or reimburse  MLBFS upon
demand for: (i) all Uniform  Commercial Code filing and search fees and expenses
incurred  by  MLBFS  in  connection   with  the   verification,   perfection  or
preservation of MLBFS' rights  hereunder or in the Collateral;  (ii) any and all
stamp,  transfer and other taxes and fees payable or determined to be payable in
connection with the execution,  delivery and/or recording of this Agreement; and
(iii) all reasonable fees and out-of-pocket expenses (including, but not limited
to,  reasonable  fees and  expenses  of outside  counsel)  incurred  by MLBFS in
connection  with the  enforcement  of this Agreement or the protection of MLBFS'
rights hereunder, excluding, however, salaries and expenses of MLBFS' employees.
The  obligations of Grantor under this paragraph shall survive the expiration or
termination of this Agreement and the discharge of the other Obligations.

     (d) Right to Perform  Obligations.  If Grantor  shall fail to do any act or
thing which it has covenanted to do under this  Agreement or any  representation
or  warranty  on the  part of  Grantor  contained  in this  Agreement  shall  be
breached,  MLBFS may,  in its sole  discretion,  after 5 Business  Days  written
notice is sent to Grantor (or such lesser  notice,  including  no notice,  as is
reasonable  under  the  circumstances),  do the  same or  cause it to be done or
remedy any such breach,  and may expend its funds for such purpose.  Any and all
reasonable  amounts so expended by MLBFS shall be  repayable to MLBFS by Grantor
upon  demand,  with  interest  at the  highest  "Interest  Rate"  under the Loan
Agreements or any document  incorporated into in any of the Loan Agreements,  or
the highest interest rate permitted by law, whichever is less, during the period
from  and  including  the date  funds  are so  expended  by MLBFS to the date of
repayment,  and any  such  amounts  due and  owing  MLBFS  shall  be  additional
Obligations. The payment or performance by MLBFS of any of Grantor's obligations
hereunder shall not relieve Grantor of said  obligations or of the  consequences
of having failed to pay or perform the same,  and shall not waive or be deemed a
cure of any Default.

     (e) Further  Assurances.  Grantor agrees to do such further acts and things
and to execute and deliver to MLBFS such additional agreements,  instruments and
documents as MLBFS may  reasonably  require or deem  advisable to effectuate the
purposes  of this  Agreement,  or to  establish,  perfect  and  maintain  MLBFS'
security interests and liens upon the Collateral, including, but not limited to:
(i) executing financing  statements or amendments thereto when and as reasonably
requested  by  MLBFS;  and  (ii) if in the  reasonable  judgment  of MLBFS it is
required by local law, causing the owners and/or mortgagees of the real property
on which any  Collateral  may be located to execute and deliver to MLBFS waivers
or subordinations reasonably satisfactory to MLBFS with respect to any rights in
such Collateral.

     (f) Binding  Effect.  This Agreement  shall be binding upon Grantor and its
successors  and  assigns,  and  shall  inure to the  benefit  of  MLBFS  and its
successors and assigns.


     (g) Headings. Captions and section and paragraph headings in this Agreement
are  inserted  only as a  matter  of  convenience,  and  shall  not  affect  the
interpretation hereof.

     (h) Governing Law. This Agreement  shall be governed in all respects by the
laws of the State of Illinois.

     (i) Severability of Provisions.  Whenever possible,  each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable  law.  Any  provision  of  this  Agreement  which  is  prohibited  or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
only to the extent of such prohibition or unenforceability  without invalidating
the  remaining  provisions  of this  Agreement  or  affecting  the  validity  or
enforceability of such provision in any other jurisdiction.

     (j) Term. This Agreement  shall become  effective upon acceptance by MLBFS,
and, subject to the terms hereof, shall continue in effect so long thereafter as
either MLBFS shall be committed to advance funds or extend credit to Customer or
there shall be any Obligations outstanding.

     (k)   Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts which, when taken together, constitute one and the same agreement.

     (l) Jurisdiction; Waiver. GRANTOR acknowledges that this Agreement is being
accepted by MLBFS in partial  consideration  of MLBFS' right and option,  in its
sole discretion, to enforce this Agreement in either the State of Illinois or in
any other  jurisdiction  where GRANTOR or any collateral for the Obligations may
be located.  GRANTOR  IRREVOCABLY SUBMITS ITSELF to jurisdiction in the State of
Illinois and venue in any State or Federal  Court in the County of Cook for such
purposes, and GRANTOR waives any and all rights to contest said jurisdiction and
venue AND THE  CONVENIENCE  OF ANY SUCH FORUM,  AND ANY AND ALL RIGHTS TO REMOVE
SUCH ACTION FROM STATE TO FEDERAL  COURT.  GRANTOR  further waives any rights to
commence any action  against MLBFS in any  jurisdiction  except in the County of
Cook and State of Illinois.  MLBFS and GRANTOR hereby each  expressly  waive any
and all  rights to a trial by jury in any  action,  proceeding  or  counterclaim
brought BY either of the parties  against  the other  party with  respect to any
matter  relating  to,  arising  out of or in any way  connected  with  the  Loan
AgreementS,  this Agreement and/or any of the transactions which are the subject
matter of the Loan  AgreementS or this  Agreement.  GRANTOR  FURTHER  WAIVES THE
RIGHT TO BRING ANY NON-COMPULSORY COUNTERCLAIMS.

     (m)   Integration.   This   written   Agreement   constitutes   the  entire
understanding  and represents the full and final  agreement  between the parties
with  respect to the  subject  matter  hereof,  and may not be  contradicted  by
evidence of prior  written  agreements or prior,  contemporaneous  or subsequent
oral  agreements of the parties.  There are no unwritten oral  agreements of the
parties.  No  amendment or  modification  of this  Agreement  shall be effective
unless in a writing signed by both MLBFS and GRANTOR.

     IN WITNESS WHEREOF, this Agreement has been executed as of the day and year
first above written.

COLORADO TECHNICAL UNIVERSITY, INC. D/B/A COLORADO TECHNICAL UNIVERSITY


By: ____________________________________________________________________________
                  Signature (1)                      Signature (2)

--------------------------------------------------------------------------------
                  Printed Name                       Printed Name

--------------------------------------------------------------------------------
                  Title                              Title


Accepted at Chicago, Illinois:
MERRILL LYNCH BUSINESS FINANCIAL
SERVICES INC.

By: __________________________________________________________



                                    EXHIBIT A

     ATTACHED  TO AND HEREBY MADE A PART OF SECURITY  AGREEMENT  NO.  0103551501
BETWEEN MERRILL LYNCH BUSINESS  FINANCIAL  SERVICES INC. AND COLORADO  TECHNICAL
UNIVERSITY,       INC.      D/B/A      COLORADO       TECHNICAL       UNIVERSITY
================================================================================


Locations of Tangible Collateral:

5775 Denver Technical Center Blvd., Suite 100
Greenwood Village, CO  80111

3901 W. 59th Street
Sioux Falls, SD  57103



                               SECURITY AGREEMENT
================================================================================

     Security  Agreement  ("Agreement")  dated as of March 21, 2001, between CTU
CORPORATION F/K/A M.D.J.B.  INC., a corporation organized and existing under the
laws of the State of Delaware  having its  principal  office at 4435 N. Chestnut
Street,  Colorado  Springs,  CO 80907  ("Grantor"),  and MERRILL LYNCH  BUSINESS
FINANCIAL SERVICES INC., a corporation  organized and existing under the laws of
the State of Delaware  having its principal  office at 222 North LaSalle Street,
Chicago, IL 60601 ("MLBFS").

     In order to induce MLBFS to extend or continue to extend credit to WHITMAN
EDUCATION GROUP, INC. D/B/A WHITMAN EDUCATION GROUP F/K/A WHITMAN MEDICAL
CORPORATION ("Customer") under the Loan Agreements (as defined below) or
otherwise, and for other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, Grantor hereby agrees with MLBFS as
follows:

1. DEFINITIONS

     (a)  Specific  Terms.  In  addition  to  terms  defined  elsewhere  in this
Agreement,  when used  herein  the  following  terms  shall  have the  following
meanings:

     (xix) "Account  Debtor" shall mean any party who is or may become obligated
with respect to an Account or Chattel Paper.

     (xx) "Bankruptcy  Event" shall mean any of the following:  (A) a proceeding
under any bankruptcy,  reorganization,  arrangement, insolvency, readjustment of
debt or receivership law or statute shall be filed or consented to by Grantor or
Customer;  or (B) any such proceeding shall be filed against Grantor or Customer
and shall not be dismissed or withdrawn within sixty (60) days after filing;  or
(C)  Grantor or  Customer  shall make a general  assignment  for the  benefit of
creditors;  or (D) Grantor or Customer  shall  generally fail to pay or admit in
writing  its  inability  to pay its debts as they  become due; or (E) Grantor or
Customer shall be adjudicated a bankrupt or insolvent.

     (xxi)  "Business  Day" shall mean any day other  than a  Saturday,  Sunday,
federal  holiday or other day on which the New York Stock  Exchange is regularly
closed.

     (xxii)  "Collateral"  shall  mean all  Accounts,  Chattel  Paper,  Contract
Rights, Inventory,  Equipment, Fixtures, General Intangibles,  Deposit Accounts,
Documents,  Instruments,  Financial  Assets and Investment  Property of Grantor,
howsoever  arising,  whether  now owned or  existing  or  hereafter  acquired or
arising, and wherever located;  together with all parts thereof (including spare
parts), all accessories and accessions thereto, all books and records (including
computer  records)  directly related thereto,  all proceeds thereof  (including,
without  limitation,  proceeds in the form of Accounts and insurance  proceeds),
and the additional collateral described in Section 7 (b) hereof.

     (xxiii) "Default" shall mean an "Event of Default", as defined in Section 6
hereof, or any event which with the giving of notice,  passage of time, or both,
would constitute such an Event of Default.

     (xxiv) "Loan Agreement" shall mean: (a) that certain TERM LOAN AND SECURITY
AGREEMENT  No.  0103551501  between  MLBFS and  Customer;  and together with all
agreements,  instruments and documents executed pursuant thereto,  as any or all
of the same may from time to time be or have been amended, restated, extended or
supplemented.

     (xxv) "Location of Tangible  Collateral"  shall mean the address of Grantor
set forth at the beginning of this Agreement, together with any other address or
addresses  set forth on any  exhibit  hereto  as being a  Location  of  Tangible
Collateral.


     (xxvi)  "Obligations"  shall mean all  liabilities,  indebtedness and other
obligations  of  Customer  or Grantor to MLBFS,  howsoever  created,  arising or
evidenced,  whether  now  existing  or  hereafter  arising,  whether  direct  or
indirect,  absolute or contingent, due or to become due, primary or secondary or
joint or several,  and, without  limiting the foregoing,  shall include interest
accruing  after the filing of any  petition in  bankruptcy,  and all present and
future  liabilities,  indebtedness  and  obligations  of Customer under the Loan
Agreements  and the  agreements,  instruments  and documents  executed  pursuant
thereto, and of Grantor under this Agreement.

     (xxvii)  "Permitted  Liens" shall mean with respect to the Collateral:  (A)
liens for current taxes not delinquent,  other  non-consensual  liens arising in
the ordinary  course of business for sums not due,  and, if MLBFS' rights to and
interest in the Collateral are not  materially and adversely  affected  thereby,
any such liens for taxes or other  non-consensual  liens arising in the ordinary
course of business being contested in good faith by appropriate proceedings; (B)
liens in favor of MLBFS; and (C) any other liens expressly  permitted in writing
by MLBFS.

     (b) Other Terms. Except as otherwise defined herein, all terms used in this
Agreement which are defined in the Uniform  Commercial Code of Illinois  ("UCC")
shall have the meanings set forth in the UCC.

2. COLLATERAL

     (a)  Pledge  of  Collateral.  To  secure  payment  and  performance  of the
Obligations,  Grantor hereby pledges, assigns, transfers and sets over to MLBFS,
and grants to MLBFS a first lien and  security  interest  in and upon all of the
Collateral, subject only to Permitted Liens.

     (b) Liens.  Except upon the prior written  consent of MLBFS,  Grantor shall
not create or permit to exist any lien, encumbrance or security interest upon or
with  respect  to any  Collateral  now owned or  hereafter  acquired  other than
Permitted Liens.

     (c)  Performance  of   Obligations.   Grantor  shall  perform  all  of  its
obligations  owing  on  account  of or with  respect  to the  Collateral  in all
material  respects;  it being  understood that nothing herein,  and no action or
inaction  by  MLBFS,  under  this  Agreement  or  otherwise,  shall be deemed an
assumption by MLBFS of any of Grantor's said obligations.

     (d) Notice of Certain Events.  Grantor shall give MLBFS immediate notice of
any  attachment,  lien,  judicial  process,  encumbrance  or claim  affecting or
involving $25,000.00 or more of the Collateral.


     (e) Indemnification Grantor shall indemnify, defend and save MLBFS harmless
from and against any and all claims, losses, costs, expenses (including, without
limitation,  reasonable  attorneys'  fees and expenses),  demands,  liabilities,
penalties,  fines and forfeitures of any nature whatsoever which may be asserted
against or incurred by MLBFS  arising out of or in any manner  occasioned by (i)
the ownership,  use, operation,  condition or maintenance of any Collateral,  or
(ii) any  failure  by  Grantor  to  perform  any of its  obligations  hereunder;
excluding,  however,  from said indemnity any such claims,  losses, etc. arising
out of the  willful  wrongful  act or active  gross  negligence  of MLBFS.  This
indemnity  shall survive the  expiration or  termination of this Agreement as to
all matters arising or accruing prior to such expiration or termination.

     (f) Insurance.  Grantor shall insure all of the tangible Collateral with an
insurer or insurers  reasonably  acceptable to MLBFS, under a policy or policies
of physical damage insurance  reasonably  acceptable to MLBFS providing that (i)
losses  will be  payable to MLBFS as its  interests  may  appear  pursuant  to a
Lender's Loss Payable endorsement , and (ii) MLBFS will receive not less than 10
days  prior  written  notice of any  cancellation;  and  containing  such  other
provisions as may be reasonably  required by MLBFS.  Grantor shall maintain such
other  insurance as may be required by law or otherwise  reasonably  required by
MLBFS.  Grantor  shall  furnish  MLBFS with a copy or  certificate  of each such
policy or policies and, prior to any expiration or cancellation, each renewal or
replacement thereof.

     (g)  Event of  Loss.  Grantor  shall at its  expense  promptly  repair  all
reasonably  repairable damage to any tangible Collateral.  In the event that any
tangible  Collateral  is damaged  beyond  repair,  lost,  totally  destroyed  or
confiscated  (an "Event of Loss") and such  Collateral had a value prior to such
Event of Loss of  $25,000.00  or more,  then, on or before the first to occur of
(i) 90 days after the occurrence of such Event of Loss, or (ii) 10 Business Days
after the date on which  either  Grantor or MLBFS shall  receive any proceeds of
insurance on account of such Event of Loss, or any  underwriter  of insurance on
such tangible  Collateral shall advise either Grantor or MLBFS that it disclaims
liability in respect of such Event of Loss,  Grantor shall, at Grantor's option,
either  replace  the  Collateral  subject to such Event of Loss with  comparable
Collateral  free of all liens other than Permitted Liens (in which event Grantor
shall be entitled to utilize the  proceeds of insurance on account of such Event
of Loss for such purpose, and may retain any excess proceeds of such insurance),
or pay to MLBFS on account of the Obligations an amount equal to the actual cash
value of such  Collateral  as  determined  by either  the  applicable  insurance
company's  payment (plus any applicable  deductible) or, in absence of insurance
company  payment,  as  reasonably  determined  by  MLBFS.   Notwithstanding  the
foregoing,  if at the  time of  occurrence  of such  Event  of Loss or any  time
thereafter  prior to replacement or payment,  as aforesaid,  an Event of Default
shall have  occurred  and be  continuing  hereunder,  then MLBFS may at its sole
option, exercisable at any time while such Event of Default shall be continuing,
require  Grantor to either replace such  Collateral or make a payment on account
of the Obligations, as aforesaid.

     (h)  Sales  and  Collections.  So long as no Event of  Default  shall  have
occurred and be continuing,  Grantor may in the ordinary course of its business:
(i) sell any Inventory  normally  held by Grantor for sale,  (ii) use or consume
any materials and supplies normally held by Grantor for use or consumption,  and
(iii) collect all of its  Accounts.  Grantor shall take such action with respect
to protection of its Inventory and the other  Collateral  and the  collection of
its Accounts as MLBFS may from time to time reasonably request.

     (i) Account  Schedules.  Upon the request of MLBFS, made now or at any time
or times  hereafter,  Grantor shall  deliver to MLBFS,  in addition to the other
information required hereunder, a schedule identifying, for each Account and all
Chattel  Paper  subject to MLBFS'  security  interests  hereunder,  each Account
Debtor by name and address and amount,  invoice number and date of each invoice.
Grantor shall furnish to MLBFS such additional  information  with respect to the
Collateral,  and  amounts  received  by  Grantor  as  proceeds  of  any  of  the
Collateral, as MLBFS may from time to time reasonably request.

     (j) Location.  Except for movements in the ordinary course of its business,
Grantor  shall give MLBFS 30 days'  prior  written  notice of the  placing at or
movement of any tangible  Collateral  to any  location  other than a Location of
Tangible  Collateral.  In no event shall  Grantor  cause or permit any  tangible
Collateral  to be removed  from the United  States  without  the  express  prior
written consent of MLBFS.


     (k) Alterations and  Maintenance.  Except upon the prior written consent of
MLBFS, Grantor shall not make or permit any material alterations to any tangible
Collateral which might materially  reduce or impair its market value or utility.
Grantor shall at all times keep the tangible  Collateral  in good  condition and
repair,  reasonable wear and tear obsolescence  excepted, and shall pay or cause
to be paid all  obligations  arising  from the  repair and  maintenance  of such
Collateral, as well as all obligations with respect to each Location of Tangible
Collateral,  except for any such obligations  being contested by Grantor in good
faith by appropriate proceedings.

3. REPRESENTATIONS AND WARRANTIES

Grantor represents and warrants to MLBFS that:

     (a)  Organization.  Grantor is a  corporation  duly  organized  and validly
existing  in good  standing  under  the laws of the  State of  Delaware,  and is
qualified  to do  business  and in good  standing  in each other state where the
nature of its  business  or the  property  owned by it make  such  qualification
necessary.

     (b)  Execution,  Delivery  and  Performance.  The  execution,  delivery and
performance  by  Grantor  of this  Agreement  have been duly  authorized  by all
requisite  action, do not and will not violate or conflict with any law or other
governmental  requirement,  or any of the  agreements,  instruments or documents
which formed or governed Grantor,  and do not and will not breach or violate any
of the  provisions  of, and will not result in a default by Grantor  under,  any
other agreement, instrument or document to which it is a party or by which it or
its properties are bound.

     (c) Notice or Consent. Except as may have been given or obtained, no notice
to or consent or approval of any  governmental  body or authority or other third
party whatsoever (including, without limitation, any other creditor) is required
in connection  with the  execution,  delivery or  performance by Grantor of this
Agreement.

     (d) Valid and  Binding.  This  Agreement  is the legal,  valid and  binding
obligation  of Grantor,  enforceable  against it in  accordance  with its terms,
except as  enforceability  may be limited by  bankruptcy  and other similar laws
affecting the rights of creditors generally or by general principles of equity.

     (e)  Financial  Statements.  Except as  expressly  set forth in  Grantor 's
financial  statements,  all financial  statements of Grantor  furnished to MLBFS
have been prepared in conformity with generally accepted accounting  principles,
consistently  applied,  are true and correct,  and fairly  present the financial
condition  of it as at such  dates and the  results  of its  operations  for the
periods  then ended;  and since the most recent date  covered by such  financial
statements,  there has been no  material  adverse  change in any such  financial
condition or operation.


     (f) Litigation,  etc. Except as previously disclosed through Customer's SEC
filings, no litigation, arbitration,  administrative or governmental proceedings
are pending or threatened against Grantor, which would, if adversely determined,
materially and adversely affect the financial condition or continued  operations
of Grantor, or the liens and security interests of MLBFS hereunder.

     (g) Taxes. All federal, state and local tax returns, reports and statements
required  to  be  filed  by  Grantor  have  been  filed  with  the   appropriate
governmental  agencies and all taxes due and payable by Grantor have been timely
paid  (except  to the  extent  that  any  such  failure  to file or pay will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder or the financial condition or continued operations of Grantor).

     (h)  Collateral.  Grantor has good and marketable  title to the Collateral,
subject  to  immaterial  imperfections  in title and,  except for any  Permitted
Liens:  (i) none of the  Collateral  is  subject  to any  lien,  encumbrance  or
security  interest,  and (ii) upon the  filing of all  Uniform  Commercial  Code
financing  statements  executed by Grantor with respect to the  Collateral  or a
copy of this Agreement in the appropriate  jurisdiction(s) and/or the completion
of any other action  required by applicable  law to perfect is lien and security
interests,  MLBFS  will  have  valid and  perfected  first  liens  and  security
interests upon all of the Collateral.

     Each of the foregoing  representations  and warranties has been and will be
relied upon as an  inducement to MLBFS to advance funds or extend or continue to
extend  credit to  Customer,  and is  continuing  and shall be deemed  remade by
Grantor  concurrently  with each such advance or extension of credit by MLBFS to
Customer.

4. FINANCIAL AND OTHER INFORMATION

     Grantor  covenants  and agrees  that  Grantor  will  furnish or cause to be
furnished to MLBFS during the term of this  Agreement  such  financial and other
information  as may be required  by the Loan  Agreements  or any other  document
evidencing the Obligations or as MLBFS may from time to time reasonably  request
relating to Grantor or the Collateral.

5. OTHER COVENANTS

     Grantor further agrees during the term of this Agreement that:

     (a) Financial Records; Inspection.  Grantor will: (i) maintain complete and
accurate books and records at its principal place of business,  and maintain all
of its financial  records in a manner  consistent with the financial  statements
heretofore  furnished  to  MLBFS,  or  prepared  on such  other  basis as may be
approved  in  writing by MLBFS;  and (ii)  permit  MLBFS or its duly  authorized
representatives,  upon reasonable notice and at reasonable times, to inspect its
properties (both real and personal), operations, books and records.

     (b)  Taxes.  Grantor  will pay when due all  taxes,  assessments  and other
governmental  charges,  howsoever  designated,  and all  other  liabilities  and
obligations,  except  to the  extent  that  any  such  failure  to pay  will not
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.


     (c) Compliance With Laws and Agreements.  Grantor will not violate any law,
regulation or other governmental requirement, any judgment or order of any court
or governmental agency or authority, or any agreement, instrument or document to
which  it is a party  or by  which  it is  bound,  if any  such  violation  will
materially and adversely affect either the liens and security interests of MLBFS
hereunder, or the financial condition or continued operations of Grantor.

     (d)  Notification  By  Grantor.  Grantor  shall  provide  MLBFS with prompt
written notification of: (i) any Default;  (ii) any materially adverse change in
the business,  financial  condition or  operations  of Customer or Grantor;  and
(iii) any information which indicates that any financial  statements of Customer
or  Grantor  fail in any  material  respect  to  present  fairly  the  financial
condition  and  results  of  operations   purported  to  be  presented  in  such
statements. Each notification by Grantor pursuant hereto shall specify the event
or information causing such notification,  and, to the extent applicable,  shall
specify the steps being taken to rectify or remedy such event or information.

     (e) Notice of Change  Grantor  shall give MLBFS not less than 30 days prior
written  notice of any change in the name  (including  any  fictitious  name) or
principal place of business of Grantor.

     (f)  Continuity.  Except  upon the prior  written  consent of MLBFS,  which
consent will not be unreasonably  withheld:  (i) Grantor shall not be a party to
any merger or  consolidation  with,  or  purchase  or  otherwise  acquire all or
substantially  all of the assets of, or any material stock,  partnership,  joint
venture or other equity interest in, any person or entity, or sell,  transfer or
lease all or any substantial part of its assets, if any such action would result
in either: (A) a material change in the principal business, ownership or control
of Grantor,  or (B) a material  adverse  change in the  financial  condition  or
operations  of Grantor;  (ii)  Grantor  shall  preserve its  existence  and good
standing in the  jurisdiction(s)  of establishment and operation;  (iii) Grantor
shall not  engage in any  material  business  substantially  different  from its
business in effect as of the date of  application  by  Customer  for credit from
MLBFS,  or cease  operating any such material  business;  (iv) Grantor shall not
cause or permit any other  person or entity to assume or succeed to any material
business or  operations  of Grantor;  and (iv) Grantor shall not cause or permit
any material change in its controlling ownership.

6. EVENTS OF DEFAULT

     The occurrence of any of the following events shall constitute an "Event of
Default" under this Agreement:

     (a) Event of Default  Under any Loan  Agreement.  An Event of Default shall
occur under the terms of any of the Loan Agreements.

     (b)  Failure  to  Perform.  Grantor  shall  default in the  performance  or
observance  of any covenant or agreement on its part to be performed or observed
under this  Agreement  (not  constituting  an Event of  Default  under any other
clause of this  Section),  and such default  shall  continue  unremedied  for 10
Business  Days after  written  notice  thereof shall have been given by MLBFS to
Grantor.


     (c) Breach of  Warranty.  Any  representation  or warranty  made by Grantor
contained in this  Agreement  shall at any time prove to have been  incorrect in
any material respect when made.

     (d) Default Under Other Agreement. A default or Event of Default by Grantor
shall occur under the terms of any other agreement,  instrument or document with
or intended  for the benefit of MLBFS,  Merrill  Lynch,  Pierce,  Fenner & Smith
Incorporated  ("MLPF&S")  or any of their  affiliates,  and any required  notice
shall have been given and required passage of time shall have elapsed.

     (e) Seizure or Abuse of Collateral.  The  Collateral,  or any material part
thereof,  shall  be or  become  subject  to any  levy,  attachment,  seizure  or
confiscation which is not released within 10 Business Days.

     (f) Bankruptcy Event. Any Bankruptcy Event shall occur.

     (g) Material Impairment. Any event shall occur which shall reasonably cause
MLBFS to in good faith believe that the prospect of payment or performance by
Grantor has been materially impaired. The existence of such a material
impairment shall be determined in a manner consistent with the intent of Section
1-208 of the UCC.

     (h)  Acceleration of Debt to Other  Creditors.  Any event shall occur which
results in the  acceleration of the maturity of any  indebtedness of $100,000.00
or  more  of  Grantor  to  another  creditor  under  any  indenture,  agreement,
undertaking, or otherwise.


7. REMEDIES

     (a) Remedies Upon Default Upon the occurrence and during the continuance of
any Event of Default,  MLBFS may at its sole option do any one or more or all of
the  following,  at such  time  and in  such  order  as  MLBFS  may in its  sole
discretion choose:

     (i) Acceleration. MLBFS may declare all Obligations to be forthwith due and
payable,  whereupon  all such  amounts  shall be  immediately  due and  payable,
without presentment,  demand for payment,  protest and notice of protest, notice
of dishonor,  notice of  acceleration,  notice of intent to  accelerate or other
notice or  formality  of any kind,  all of which are  hereby  expressly  waived;
provided,  however,  that  upon  the  occurrence  of any  Bankruptcy  Event  all
Obligations shall automatically become due and payable without any action on the
part of MLBFS.

     (ii) Exercise Rights of Secured Party. MLBFS may exercise any or all of the
remedies of a secured party under applicable law, including, but not limited to,
the UCC, and any or all of its other rights and remedies under this Agreement.

     (iii) Possession.  MLBFS may require Grantor to make the Collateral and the
records pertaining to the Collateral available to MLBFS at a place designated by
MLBFS which is reasonably  convenient to Grantor,  or may take possession of the
Collateral and the records  pertaining to the Collateral  without the use of any
judicial process and without any prior notice to Grantor.

     (iv) Sale. MLBFS may sell any or all of the Collateral at public or private
sale upon such terms and  conditions as MLBFS may  reasonably  deem proper,  and
MLBFS may purchase any  Collateral at any such public sale; and the net proceeds
of any such public or private sale and all other amounts  actually  collected or
received  by MLBFS  pursuant  hereto,  after  deducting  all costs and  expenses
incurred at any time in the collection of the Obligations and in the protection,
collection  and sale of the  Collateral,  will be applied to the  payment of the
Obligations,  with any remaining proceeds paid to Grantor or whoever else may be
entitled thereto, and with Customer and each guarantor of Customer's obligations
remaining  jointly and severally  liable for any amount  remaining  unpaid after
such application.

     (v) Delivery of Cash,  Checks,  Etc. MLBFS may require Grantor to forthwith
upon  receipt,  transmit  and deliver to MLBFS in the form  received,  all cash,
checks,  drafts  and  other  instruments  for the  payment  of  money  (properly
endorsed,  where  required,  so that such items may be collected by MLBFS) which
may be  received  by  Grantor  at any  time in full or  partial  payment  of any
Collateral,  and require that Grantor not  commingle any such items which may be
so received by Grantor  with any other of its funds or property but instead hold
them separate and apart and in trust for MLBFS until delivery is made to MLBFS.

     (vi)  Notification of Account Debtors.  MLBFS may notify any Account Debtor
that its  Account or Chattel  Paper has been  assigned  to MLBFS and direct such
Account Debtor to make payment  directly to MLBFS of all amounts due or becoming
due with respect to such Account or Chattel Paper; and MLBFS may enforce payment
and collect, by legal proceedings or otherwise, such Account or Chattel Paper.

     (vii) Control of Collateral. MLBFS may otherwise take control in any lawful
manner of any cash or non-cash items of payment or proceeds of Collateral and of
any rejected,  returned, stopped in transit or repossessed goods included in the
Collateral and endorse Grantor name on any item of payment on or proceeds of the
Collateral,   and,  in  connection  therewith,   MLBFS  may  notify  the  postal
authorities  to change the address for delivery of mail  addressed to Grantor to
such address as MLBFS may designate.


     (b) Set-Off.  MLBFS shall have the further  right upon the  occurrence  and
during the continuance of an Event of Default to set-off,  appropriate and apply
toward payment of any of the Obligations,  in such order of application as MLBFS
may from  time to time and at any  time  elect,  any  cash,  credits,  deposits,
accounts,  financial  assets,  investment  property,  securities  and any  other
property  of Grantor  which is in transit  to or in the  possession,  custody or
control of MLBFS, MLPF&S or any agent,  bailee, or affiliate of MLBFS or MLPF&S.
Grantor hereby  collaterally  assigns and grants to MLBFS a security interest in
all such property as additional Collateral.

     (c)  Power of  Attorney.  Effective  upon the  occurrence  and  during  the
continuance of an Event of Default, Grantor hereby irrevocably appoints MLBFS as
its  attorney-in-fact,  with full power of substitution,  in its place and stead
and in its name or in the name of MLBFS,  to from  time to time in  MLBFS'  sole
discretion  take any action and to execute any  instrument  which MLBFS may deem
necessary or advisable to accomplish the purposes of this Agreement,  including,
but not limited to, to receive, endorse and collect all checks, drafts and other
instruments  for the  payment of money made  payable to Grantor  included in the
Collateral.

     (d) Remedies are Severable and Cumulative. All rights and remedies of MLBFS
herein are  severable  and  cumulative  and in addition to all other  rights and
remedies  available at law or in equity,  and any one or more of such rights and
remedies may be exercised  simultaneously  or successively.  Any notice required
under this  Agreement or under  applicable  law shall be deemed  reasonably  and
properly  given to Grantor if given at the  address and by any of the methods of
giving notice set forth in this Agreement at least 5 Business Days before taking
any action specified in such notice.

     (e) Notices.  To the fullest extent  permitted by applicable  law,  Grantor
hereby irrevocably waives and releases MLBFS of and from any and all liabilities
and  penalties  for  failure  of MLBFS to  comply  with any  statutory  or other
requirement  imposed upon MLBFS relating to notices of sale,  holding of sale or
reporting  of  any  sale,  and  Grantor  waives  all  rights  of  redemption  or
reinstatement  from any such sale.  MLBFS  shall have the right to  postpone  or
adjourn any sale or other  disposition  of Collateral at any time without giving
notice of any such postponed or adjourned date. In the event MLBFS seeks to take
possession of any or all of the  Collateral by court  process,  Grantor  further
irrevocably  waives to the  fullest  extent  permitted  by law any bonds and any
surety or  security  relating  thereto  required by any  statute,  court rule or
otherwise as an incident to such possession, and any demand for possession prior
to the commencement of any suit or action.


8. MISCELLANEOUS

     (a) Non-Waiver.  No failure or delay on the part of MLBFS in exercising any
right,  power or remedy  pursuant to this  Agreement  shall  operate as a waiver
thereof,  and no single or partial  exercise of any such right,  power or remedy
shall  preclude any other or further  exercise  thereof,  or the exercise of any
other  right,  power or  remedy.  Neither  any waiver of any  provision  of this
Agreement,  nor any  consent to any  departure  by Grantor  therefrom,  shall be
effective unless the same shall be in writing and signed by MLBFS. Any waiver of
any provision of this Agreement and any consent to any departure by Grantor from
the terms of this Agreement shall be effective only in the specific instance and
for the specific purpose for which given. Except as otherwise expressly provided
herein,  no notice to or demand on Grantor shall in any case entitle  Grantor to
any other or further notice or demand in similar or other circumstances.

     (b)  Communications.  All  notices  and other  communications  required  or
permitted  hereunder  shall  be  in  writing,  and  shall  be  either  delivered
personally,  mailed  by  postage  prepaid  certified  mail or  sent  by  express
overnight  courier or by  facsimile.  Such notices and  communications  shall be
deemed to be given on the date of personal delivery,  facsimile  transmission or
actual  delivery of certified  mail,  or one  Business Day after  delivery to an
express  overnight  courier.  Unless  otherwise  specified  in a notice  sent or
delivered in accordance with the terms hereof,  notices and other communications
in writing shall be given to the parties  hereto at their  respective  addresses
set forth at the  beginning  of this  Agreement,  and, in the case of  facsimile
transmission,  to the parties at their respective  regular  facsimile  telephone
number.

     (c) Costs,  Expenses and Taxes.  Grantor shall pay or reimburse  MLBFS upon
demand for: (i) all Uniform  Commercial Code filing and search fees and expenses
incurred  by  MLBFS  in  connection   with  the   verification,   perfection  or
preservation of MLBFS' rights  hereunder or in the Collateral;  (ii) any and all
stamp,  transfer and other taxes and fees payable or determined to be payable in
connection with the execution,  delivery and/or recording of this Agreement; and
(iii) all reasonable fees and out-of-pocket expenses (including, but not limited
to,  reasonable  fees and  expenses  of outside  counsel)  incurred  by MLBFS in
connection  with the  enforcement  of this Agreement or the protection of MLBFS'
rights hereunder, excluding, however, salaries and expenses of MLBFS' employees.
The  obligations of Grantor under this paragraph shall survive the expiration or
termination of this Agreement and the discharge of the other Obligations.

     (d) Right to Perform  Obligations.  If Grantor  shall fail to do any act or
thing which it has covenanted to do under this  Agreement or any  representation
or  warranty  on the  part of  Grantor  contained  in this  Agreement  shall  be
breached,  MLBFS may,  in its sole  discretion,  after 5 Business  Days  written
notice is sent to Grantor (or such lesser  notice,  including  no notice,  as is
reasonable  under  the  circumstances),  do the  same or  cause it to be done or
remedy any such breach,  and may expend its funds for such purpose.  Any and all
reasonable  amounts so expended by MLBFS shall be  repayable to MLBFS by Grantor
upon  demand,  with  interest  at the  highest  "Interest  Rate"  under the Loan
Agreements or any document  incorporated into in any of the Loan Agreements,  or
the highest interest rate permitted by law, whichever is less, during the period
from  and  including  the date  funds  are so  expended  by MLBFS to the date of
repayment,  and any  such  amounts  due and  owing  MLBFS  shall  be  additional
Obligations. The payment or performance by MLBFS of any of Grantor's obligations
hereunder shall not relieve Grantor of said  obligations or of the  consequences
of having failed to pay or perform the same,  and shall not waive or be deemed a
cure of any Default.

     (e) Further  Assurances.  Grantor agrees to do such further acts and things
and to execute and deliver to MLBFS such additional agreements,  instruments and
documents as MLBFS may  reasonably  require or deem  advisable to effectuate the
purposes  of this  Agreement,  or to  establish,  perfect  and  maintain  MLBFS'
security interests and liens upon the Collateral, including, but not limited to:
(i) executing financing  statements or amendments thereto when and as reasonably
requested  by  MLBFS;  and  (ii) if in the  reasonable  judgment  of MLBFS it is
required by local law, causing the owners and/or mortgagees of the real property
on which any  Collateral  may be located to execute and deliver to MLBFS waivers
or subordinations reasonably satisfactory to MLBFS with respect to any rights in
such Collateral.


     (f) Binding  Effect.  This Agreement  shall be binding upon Grantor and its
successors  and  assigns,  and  shall  inure to the  benefit  of  MLBFS  and its
successors and assigns.

     (g) Headings. Captions and section and paragraph headings in this Agreement
are  inserted  only as a  matter  of  convenience,  and  shall  not  affect  the
interpretation hereof.

     (h) Governing Law. This Agreement  shall be governed in all respects by the
laws of the State of Illinois.

     (i) Severability of Provisions.  Whenever possible,  each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable  law.  Any  provision  of  this  Agreement  which  is  prohibited  or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
only to the extent of such prohibition or unenforceability  without invalidating
the  remaining  provisions  of this  Agreement  or  affecting  the  validity  or
enforceability of such provision in any other jurisdiction.

     (j) Term. This Agreement  shall become  effective upon acceptance by MLBFS,
and, subject to the terms hereof, shall continue in effect so long thereafter as
either MLBFS shall be committed to advance funds or extend credit to Customer or
there shall be any Obligations outstanding.

     (k)   Counterparts.   This  Agreement  may  be  executed  in  one  or  more
counterparts which, when taken together, constitute one and the same agreement.

     (l) Jurisdiction; Waiver. GRANTOR acknowledges that this Agreement is being
accepted by MLBFS in partial  consideration  of MLBFS' right and option,  in its
sole discretion, to enforce this Agreement in either the State of Illinois or in
any other  jurisdiction  where GRANTOR or any collateral for the Obligations may
be located.  GRANTOR  IRREVOCABLY SUBMITS ITSELF to jurisdiction in the State of
Illinois and venue in any State or Federal  Court in the County of Cook for such
purposes, and GRANTOR waives any and all rights to contest said jurisdiction and
venue AND THE  CONVENIENCE  OF ANY SUCH FORUM,  AND ANY AND ALL RIGHTS TO REMOVE
SUCH ACTION FROM STATE TO FEDERAL  COURT.  GRANTOR  further waives any rights to
commence any action  against MLBFS in any  jurisdiction  except in the County of
Cook and State of Illinois.  MLBFS and GRANTOR hereby each  expressly  waive any
and all  rights to a trial by jury in any  action,  proceeding  or  counterclaim
brought BY either of the parties  against  the other  party with  respect to any
matter  relating  to,  arising  out of or in any way  connected  with  the  Loan
AgreementS,  this Agreement and/or any of the transactions which are the subject
matter of the Loan  AgreementS or this  Agreement.  GRANTOR  FURTHER  WAIVES THE
RIGHT TO BRING ANY NON-COMPULSORY COUNTERCLAIMS.

     (m)   Integration.   This   written   Agreement   constitutes   the  entire
understanding  and represents the full and final  agreement  between the parties
with  respect to the  subject  matter  hereof,  and may not be  contradicted  by
evidence of prior  written  agreements or prior,  contemporaneous  or subsequent
oral  agreements of the parties.  There are no unwritten oral  agreements of the
parties.  No  amendment or  modification  of this  Agreement  shall be effective
unless in a writing signed by both MLBFS and GRANTOR.

     IN WITNESS WHEREOF, this Agreement has been executed as of the day and year
first above written.

CTU CORPORATION F/K/A M.D.J.B. INC.

By: ____________________________________________________________________________
                  Signature (1)                      Signature (2)

--------------------------------------------------------------------------------
                  Printed Name                       Printed Name

--------------------------------------------------------------------------------
                  Title                              Title

Accepted at Chicago, Illinois:
MERRILL LYNCH BUSINESS FINANCIAL
SERVICES INC.


By: __________________________________________________________



                                    EXHIBIT A

     ATTACHED  TO AND HEREBY MADE A PART OF SECURITY  AGREEMENT  NO.  0103551501
BETWEEN MERRILL LYNCH BUSINESS FINANCIAL SERVICES INC. AND CTU CORPORATION F/K/A
M.D.J.B.INC.
==============================================================================


Locations of Tangible Collateral: