I’m a little weary right now and just want to wait until v1.0 of BBPress is released before I make the move you suggested. Here’s what I did (after hours of trying to remember what I did before and doing hours of research) and it worked like a charm and I can now access my BBPress admin with no problems…
I’m not logged in at the test site so there should be a FB button. There was when BP RC2 was there but now I assume they have upgraded to v1.0 on the test site and just chose not to add it this time.
I have a ton of FB users on my forum so this is a “must have” for me and not seeing it there makes me worry that perhaps they removed it because it’s not compatible with BP v1.0 or something.