Since the way the database here is based on ISBNs, means we can't wish list books older than the ISBN system (1971 if I remember correctly) is it OK to advertise in the book bazaar if you are looking for specific titles from pre-ISBN days? I wouldn't think that would constitute trying to bypass FIFO or anything would it?

Yes, it is OK.

Since you are a regular poster-I'd put what I'm looking for in my signature. It might get more exposure that way.  Many regular forum users avoid the BB because it's kind of insane over there.