I need a bridge between a cms (cms pro!) and a forum (Woltlab Burning Board 3.1). As both register processes are individual, I just need a script for that. If user A registers at the cms, his account should be inserted to our forum too, so he can login with only one account. Of course if someone registers at the forum, his account should be inserted to the cms too. So it does not matter where he registers, its important that he only have to register one time. The script should add old users first, which have registered at our forum/cms, but are not registered in our cms/forum.