sjau - That wouldn't be hard to do, but what you would need to do depends on exactly how you're using the script. I'm assuming you're planning on using 2 seperate files placed in seperate folders. If that's the case, you would just need to open your myvbindex.php file and look for:
WHERE open<>10 $iforumperms
And replace that with:
WHERE open<>10 AND forumid=XX
(replace XX there with your =wOw= forumid)
I'm not sure I see what you're trying to do with using the script in different folders though... The style, graphics, and most everything visual is controlled by the templates and nothing in the actual php file. There's probably a way you can accomplish this though styles, but I don't see the point in having more than one script installed in different folders. Of course it's possible that I'm misinterpreting what you're trying to do, but I was just making sure you weren't wasting time on something that wouldn't work right.