PROSPECTUS SUPPLEMENT NO. 7 |
Filed Pursuant to
Rule 424(b)(7)
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(To Prospectus dated May 10,
2007 as supplemented and amended by
prospectus supplement no. 1 dated June 13, 2007, prospectus supplement no. 2 dated July 17, 2007, prospectus supplement no. 3 dated August 24, 2007, prospectus supplement no. 4
dated September 27, 2007,
prospectus supplement
no. 5 dated October 29, 2007 and
prospectus supplement no.
6 dated December 6, 2007)
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Registration
Statement No. 333-142820
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Selling
Shareholder
|
Number
of Shares
Beneficially Owned Prior to the Offering(1)(2) |
Percentage
of
Shares Beneficially Owned Prior to the Offering(3) |
Number
of Shares
Offered Pursuant to this Prospectus |
Number
of
Shares Beneficially Owned After the Offering(4) |
Percentage
of
Shares Beneficially Owned After the Offering(3) |
Akanthos
Arbitrage Master Fund, L.P. (5)
|
3,410,115
|
*
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3,410,115
|
0
|
*
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Argent
Classic Convertible Arbitrage Fund Ltd. (6)
|
1,011,758
|
*
|
1,011,758
|
0
|
*
|
Bayerische
Hypo-und Vereinsbank AG (7)
|
1,273,109
|
*
|
1,273,109
|
0
|
*
|
Highbridge
International LLC (8)
|
1,952,630
|
*
|
1,952,630
|
0
|
*
|
Highbridge
Capital Arbitrage Master Fund L.P. (9)
|
304,975
|
*
|
304,975
|
0
|
*
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JMG
Capital Partners, L.P. (10)
|
431,948
|
*
|
431,948
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0
|
*
|
JP
Morgan Securities Inc. (11)
|
2,046,069
|
*
|
2,046,069
|
91
|
*
|
Reflex
Master Portfolio Ltd (12)
|
113,670
|
*
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113,670
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0
|
*
|
*
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Less
than one percent.
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(1)
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Based
on information available to us as of April 17, 2008 in Selling Security
Holder Notices and Questionnaires delivered by the selling
shareholders.
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(2)
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The
number of common shares issuable upon the exchange or redemption of the
notes assumes exchange of the full amount of notes held by each selling
shareholder at the initial exchange rate of 45.4682 shares of our common
shares per $1,000 principal amount of notes and a cash payment in lieu of
any fractional share, even though we are required to pay the first $1,000
of exchange value in cash. The exchange rate is subject to adjustment in
certain events.
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(3)
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Based
on a total of 60,293,375 shares of our common stock outstanding as of
April 17, 2008.
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(4)
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Assumes
the selling shareholder sells all of its common shares offered pursuant to
this prospectus.
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(5)
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Akanthos
Capital Management, LLC and Michael Kao exercise voting and/or dispositive
powers with respect to these securities. Akanthos Arbitrage Master Fund,
L.P. has reported as short position in our common shares of 785,807
as of February 8, 2008.
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(6)
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Nathanial
Brown and Robert Richardson exercise voting and/or dispositive powers with
respect to these securities.
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(7)
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Carsten
Richter has voting and dispositive power over the notes held by Bayerische
Hypo- und Vereinsbank AG. Bayerische Hypo- und Vereinsbank AG has reported
currently having, or previously having, an open short position in our
common shares.
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(8)
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Highbridge
Capital Management, LLC is the trading manager of Highbridge International
LLC and has voting control and investment discretion over the securities
held by Highbridge International LLC. Glenn Dubin and Henry
Swieca control Highbridge Capital Management, LLC and have voting control
and investment discretion over the securities held by Highbridge
International LLC. Each of Highbridge Capital Management, LLC,
Glenn Dubin and Henry Swieca disclaims beneficial ownership of the
securities held by Highbridge International LLC. Highbridge
International LLC has reported currently having, or previously having, an
open short position in our common shares.
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(9)
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Highbridge
Capital Management, LLC is the trading manager of Highbridge Capital
Arbitrage Master Fund L.P. and has voting control and investment
discretion over the securities held by Highbridge Capital Arbitrage Master
Fund L.P. Glenn Dubin and Henry Swieca control Highbridge
Capital Management, LLC and have voting control and investment discretion
over the securities held by Highbridge Capital Arbitrage Master Fund
L.P. Each of Highbridge Capital Management, LLC, Glenn Dubin
and Henry Cwieca disclaims beneficial ownership of the securities held by
Highbridge Capital Arbitrage Master Fund L.P. Highbridge Capital Arbitrage
Master Fund L.P. has reported currently having, or previously having, an
open short position in our common shares.
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(10)
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JMG
Capital Partners, L.P. (“JMG Partners”) is a California limited
partnership. Its general partner is JMG Capital Management, LLC
(the “Manager”), a Delaware limited liability company and
an
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investment adviser that has voting and dispositive power of JMG Partners’ investments, including the shares beneficially owned prior to the offering. The equity interests of the Manager are owned by JMG Capital Management, Inc. (“JMG Capital”) a California corporation, and Asset Alliance Holding Corp., a Delaware corporation. Jonathan M. Glaser is the Executive Officer and Director of JMG Capital and has sole investment discretion over JMG Partners’ portfolio holdings. JMG Capital Partners has reported currently having, or previously having, an open short position in our common shares. | |
(11)
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JP
Morgan Securities Inc. is a wholly-owned subsidiary of JPMorgan Chase
& Co. JP Morgan Securities Inc. owns 91 of our common
shares and has reported currently having, or previously having, an open
short position in our common shares.
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(12)
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Deutsche
Bank Trust Companies America may be deemed to exercise dispositive power
or investment control over the securities stated as beneficially owned by
Reflex Master Portfolio Ltd.
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