I just recalled that there was a Class Action Lawsuit that has been settled and if you purchased Lehman Common Stock between June 12, 2007 and September 15, 2008 you are entitled to a part of
the Settlement. I don't know what your recovery will be but at least it will be something.
You should have received the forms from your Broker. You need to file a Proof of Claim Form by May 17, 2012. The form is in the first link in POST # 2950 - LEHKQ
" 3) purchased or acquired Lehman common stock, call options, and/or sold put options between June 12, 2007 and September 15, 2008 through and inclusive, and who were damaged thereby (the “D&O Class”) "