[Digital Jedi]

I don't know if they misunderstood your request in that thread, or I misunderstand what your asking. But if you're just talking about subdomains under a flagship domain, then you don't need multiple licenses.

But on the modifications, other than some basic conditionals needed to show ads in specific forums, this pretty much just looks like stuff vBulletin does by default. I read through your questions and I don't see much, if anything, that would require a modification, per se. Just some template edits for the advertisements.