there is a small analysis that can be made. In october 2007, the company recieved 300 million dollars for the ipo. this was used like this 100 in 2007 & 08. That is 200, plus 110 they have in cash that is 310, plus the remaining 55% @ a valuation of 70% of the ipo, let´s say they sell the rest (this is a conservative theorem).
that will be 260 million ( 360 million @ price of ipo minus 30%).. this gives you 570 million MINUS 200 million in debt that is 370 million, divided by 37,570,000 million shares, that is $9.84 or $10 dollar stock, valued at $2.50.

Nice 400% upside potential.