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Filed Pursuant to Rule 424(b)(3)
Registration No. 333-84134



21/4% Convertible Subordinated Notes due 2006
5,807,000 Shares of Common Stock Issuable on Conversion of the Notes

This prospectus supplement ("Prospectus Supplement") supplements our Prospectus dated March 11, 2002 (the "Prospectus"), as amended by prospectus supplements dated March 20, 2002 and April 23, 2002, and relates to our 21/4% Convertible Subordinated Notes due 2006, which are held by certain security holders who may offer for sale the notes and shares of our common stock into which the notes are convertible at any time, at market prices prevailing at the time of sale or at privately negotiated prices. The selling security holders may sell the notes or the common stock directly to purchasers or through underwriters, broker-dealers or agents, who may receive compensation in the form of discounts, concessions or commissions. We will not receive any proceeds from this offering.

        This Prospectus Supplement should be read in conjunction with the Prospectus and this Prospectus Supplement is qualified by reference to the Prospectus, except to the extent that the information contained in this Prospectus Supplement supersedes the information contained in the Prospectus. Capitalized Terms used in this Prospectus Supplement and not otherwise defined herein have the meanings specified in the Prospectus.


The date of this Prospectus Supplement is June 14, 2002.

Selling Security Holders

        We issued, and the initial purchasers sold, the notes offered by this Prospectus in a transaction exempt from the registration requirements of the Securities Act to persons whom the initial purchasers reasonably believed to be "qualified institutional buyers" (as defined in Rule 144A under the Securities Act). The selling security holders (which term includes the initial purchasers' transferees, pledges, donees or their successors) may from time to time offer and sell pursuant to this prospectus any or all of the notes and common stock issued upon conversion of the notes.

        The selling security holders table, as set forth in the Prospectus, is hereby amended (as amended, the "Amended Table") by the addition or revisions set forth in the Amended Table below, including changes in the selling security holders and in the selling security holders' principal amounts of notes. The Amended Table sets forth information, as of June 14, 2002, with respect to the selling security holders and the respective principal amounts of notes beneficially owned by each selling security holder that may be offered pursuant to this Prospectus. None of the selling security holders has, or within the past three years has had, any position, office or other material relationship with us or any of our predecessors or affiliates. We have included information in this Prospectus regarding the selling security holders based solely upon information that the selling security holders have provided to us in writing pursuant to a registration rights agreement dated December 11, 2001. Because the selling security holders may offer all or some portion of the notes or the common stock issuable upon conversion of the convertible notes pursuant to this Prospectus, we cannot estimate the amount of the notes or the common stock issuable upon conversion of the notes that the selling security holders will hold upon termination of any such sales. In addition, the selling security holders identified below may have sold, transferred or otherwise disposed of all or a portion of their notes in transactions exempt from the registration requirements of the Securities Act since the date on which they provided the information regarding their notes.

  Number of Shares of Common Stock
  Principal Amount of
Beneficially Owned
and Offered Hereby(1)

Name of Selling Security Holder

  Beneficially Owned(1)(2)
  Offered Hereby(1)
  Owned After the Offering
Allstate Insurance Company   1,250,000   21,560   14,518   7,042
Allstate Life Insurance Company   825,000   12,809   9,581   3,228
CIBC World Markets   1,757,000   20,406   20,406   0
Credit Suisse First Boston Corporation   15,021,000   174,459   174,459   0
Delta Air Lines Benefit Trust   1,450,000   25,467   16,840   8,627
Deutsche Banc Securities, Inc.   27,828,000   323,205   323,205   0
DLB High Yield Fund   100,000   1,161   1,161   0
First Union Securities Inc.   34,550,000   401,270   401,270   0
Franklin FIST Convertible Securities Fund   4,000,000   46,457   46,457   0
Goldman Sachs and Company   2,500,000   29,036   29,036   0
JP Morgan Securities, Inc.   15,000,000   174,378   174,216   0
KBC Financial Products (Cayman Islands)   7,500,000   87,108   87,108   0
Man Convertible Bond Master Fund, Ltd.   6,277,000   72,903   72,903   0
Massachusetts Mutual Life Insurance Company   1,475,000   17,231   17,131   100
MassMutual Asia Limited   25,000   290   290   0
MassMutual Corporate Investors   425,000   4,936   4,936   0
MassMutual High Yield Partners II LLC   750,000   8,710   8,710   0
MassMutual Participation Investors   225,000   2,613   2,613   0
Pioneer High Yield Fund   4,000,000   319,344   46,457   272,887
St. Thomas Trading, Ltd.   9,365,000   108,768   108,768   0
UBS Warburg LLC   17,685,000   205,400   205,400   0

Information concerning the selling security holders may change from time to time and any such changed information will be set forth in supplements to this Prospectus if and when necessary. In addition, the per share conversion price, and therefore the number of shares issuable upon conversion of the notes, is subject to adjustment under certain circumstances. Accordingly, the aggregate principal amount of notes and the number of shares of common stock issuable upon conversion of the notes offered hereby may increase or decrease.

Assumes a conversion price of $86.10 per share, and a cash payment in lieu of any fractional share interest.

        Information concerning other selling security holders will be set forth in Prospectus supplements from time to time, if required. The above table assumes that any other holders of notes or any future transferee from any such holder does not beneficially own any common stock other than the common stock issuable upon conversion of the notes at the initial conversion rate.


Convertible Subordinated Notes
Selling Security Holders