Need a WordPress plugin for a open forum

I need a forum plugin for Wordpress,which will not link with any online forums like (Bublaa Forum Plugin : http://ift.tt/1wiQMwU does).

Requirements are to manage all the participants, topics , replies through website's own database. It will create all these tables at the time of plugin installation. We have tried so many plugins like (Bublaa Forum , bbPress etc) but those do not match the exact requirements.

via Chebli Mohamed