From their 2007 10q:
In the event of a liquidation event, each preferred shareholder is entitled to receive cash in the amount of the stated value then in effect. A liquidation event is defined as the voluntary or involuntary liquidation, dissolution or winding up of the Company or a Change of Control. The liquidation value of the preferred shares as of March 31, 2007 was $26.4 million.
So does this means commons get the remaining portion of the 44m?