I've notices that pretty much all the old accounts lost all their permissions so when you log in you can't see any forums, I'm go back on the sql database and see what I missed.
Ok it should be fixed now. I didn't move the group data over so thats what was missing...to avoid anything messing up I manualy added everyone to the right group.
I think I got everyone but if there is somebody who can't see any forums when loged in let me know via email.
Back again. Good stuff!