I came across this on James Lochner's site, which was written in 2008...
The masters, which were long thought to have been lost, were discovered in 2007, mislabeled in a vault. An independent label is now in talks with Corigliano to release the score, once it is determined who owns the rights and who will receive the residuals.
http://jameslochner.com/writing/revolution/
Was this the article you read? (I think it was also published in FSM.) In any case, with the recent DVD release (and its generally positive notices) I'd guess it is only a matter of time before this score is finally released.
