Garritan's sale ended on the 28th, but PG is still offering a discount on JABB and GPO. It's on the 'Other Software' page.... at the bottom, under 3rd Party software and synths:

http://www.pgmusic.com/products.win.htm

I'll try to find the thread about specific set up re: finding which channel is assigned to each midi track in BIAB / RB

Basically, you have to use the exact channel in the Garritan plug in. i.e. If you want to render a midi bass track in BIAB, go to Opt->Preferences->Channels to see that Bass is on channel 2. So in the Garritan JABB (for example) you would have to assign a bass part to slot 2 in the Garritan plug.

BIAB/RealBand stuff
Orig. tunes (players)
'BIG HAIR' days