Exhibit 99.1


                            Explanation of Responses

(1)  Represents shares of common stock issuable upon conversion of 2,500,000
     shares of Series A Convertible Preferred Stock convertible beginning on
     July 31, 2008 for the number of shares obtained by dividing the aggregate
     liquidation preference of such shares ($100 per share) by the
     then-effective conversion price. The number of shares of common stock
     issuable upon conversion of such shares of Series A Convertible Preferred
     Stock will depend upon the conversion price which will be the product of
     0.83 multiplied by the volume weighted average sale price on the New York
     Stock Exchange or other principal securities exchange upon which the
     issuer's common stock is then listed for the 22 trading days beginning on
     and including February 1, 2008 (disregarding the trading days during such
     period having the highest and lowest volume weighted average sale price),
     subject to certain adjustments contained in the issuer's Certificate of
     Designation of 4.0% Series A Convertible Preferred Stock and 4.0% Series B
     Convertible Preferred Stock.

(2)  Of the 2,500,000 shares of Series A Convertible Preferred Stock discussed
     in Note 1 above, 2,363,621 are held by Centerbridge Capital Partners, L.P,
     83,917 are held by Centerbridge Capital Partners Strategic, L.P. and 52,462
     are held by Centerbridge Capital Partners SBS, L.P. Centerbridge
     Associates, L.P. is the general partner of Centerbridge Capital Partners,
     L.P., Centerbridge Capital Partners Strategic, L.P. and Centerbridge
     Capital Partners SBS, L.P. Centerbridge GP Investors, LLC is the general
     partner of Centerbridge Associates, L.P.

(3)  No Expiration Date.