I've got the trial of IPB 2.0.0 and installed it on my home computer just to mess around with it, see how it works etc.

What i'm wondering is where does it store what member group a user is in? I can't find the right table. Thanks

ACP > SQL Management > SQL Toolbox > ibf_members > third column. it displays their group id

the ibf_member would be different depending what your prefix is (the ibf_) part

Thanks