Merging two forums?

[Scott MacVicar]

as users could have the same username, this would be quite difficult, one of them would need to change. If you were sure that there was no two identical usernames in each of the databases then it wouldn't be that hard, you'd have to issue one of the databases with completely new userid's which would involve editing every row in nearly all the tables, once you had done that then you'd have to give the thread and post tables completely different ID's and then you could merge the two forums.