Googleguy has posted that most people should see their erroneous supplementals returning to the index. But if you aren't one of the lucky ones, you can get in touch with him to try to resolve the problem. Here is what he said, specifically...
Okay, quite a few people should see their pages coming back. If you haven't seen any change (that is, if your pages are still supplemental), I'd like to look into that too so that I can see if there's any common factor remaining.
So: if your pages are still supplemental, feel free to write to sesnyc06 [at] gmail.com with the subject line of "stillsupplemental" (all one word), and I'll ask someone to check the emails out.