Is it possible to setup different products in amember and then have those correspond so that depending on what product the user purchased, they would only get access to a certain sub-category in my PHPBB forum?
Yes, In PHPBB3: You would need to create a new group, and assign the permissions to the subforum to that group. Then in aMember, you would set the "phpBB3 additional access" in the product setting to the new group. David