This excerpt taken from the C DEF 14A filed Jun 18, 2009.
Effect of the Reverse Stock Split on Options, Restricted Stock Awards and Units, Warrants, and Convertible or Exchangeable Securities
Based upon the reverse stock split ratio determined by the board of directors, proportionate adjustments are generally required to be made to the per share exercise price and the number of shares issuable upon the exercise or conversion of all outstanding options, warrants, convertible or exchangeable securities entitling the holders to purchase, exchange for, or convert into, shares of common stock including any Interim Securities or warrants issued in the USG/Private Holders Transactions that remain outstanding. This would result in approximately the same aggregate price being required to be paid under such options, warrants, convertible or exchangeable securities upon exercise, and approximately the same value of shares of common stock being delivered upon such exercise, exchange or conversion, immediately following the Reverse Stock Split as was the case immediately preceding the Reverse Stock Split. The number of shares deliverable upon settlement or vesting of restricted stock awards and units will be similarly adjusted. The number of shares reserved for issuance pursuant to these securities will be reduced proportionately based upon the reverse stock split ratio determined by the board of directors.