they're just using one server, it's imposable to have sub domains on multi-servers unless your running the servers yourself, then that's a different story (but still thinks it's imposable)...plus I think it's bs...I don't know about haveing it run 2 forums if it shows the same post and such, I think that if your running 2 and they use different MySQL database, then you need 2 licenses (right now, on my site, it seems like I have 2, but I'm only using one database, I'm waiting tell people knows that my main site is the board, then I'll just delete the sub and bye bye)......now, if your thinking about haveing people pay, you first need to think of what they are paying for....are they paying for more space for PMs?? are they paying to get access to some hidden forums?? cuz all you need to do is set it up so once the money get confrem that it's sent, it moves that user into a new user group that you made and in that user group have alot more stuff then the others, should be simple enough (or you could have them send you the money and ask for his screen name in a letter with the money so you can move him over to the user group yourself

) but why would you do that for?? I just think it's a cheap why of making money, just plain cheap and unfair for people that doesn't know what they are getting them self into.