I believe im having the same problem. I am using Directorypress from Premiumpress. I have the the forum set up great but it seems as though bbpress isn’t playing nice with directorypress. I Want mY sidebar there for advertising and widgets, but on my forums page, the sidebar is showing up Underneath the forum.
What makes it worse is that bbpress is only 2/3 width, so theres a blank spot where the sidebar is supposed to be.
Does this sound familiar? and if so, does anyboy have the solution to this problem?