No I've used categories in the past; currently have 5 categories and 39 forums spread over those categories, so I know how it works ; I've used UBB threads since it was a CGI based forum software.

I've cleared the cache via the forum as well as my browser's cache; logged in via IE, FireFox, Chrome and Opera.

Now, even more weird is that the "forum" i created shows up on the main page, but doesn't appear on the Forum Settings page at all. And what it says on the Forum page is that its a "private" thread. I can't even access it (says permission is denied) yet I am the administrator.