Just a few questions

[M i K e]

Okay here are a few questions i want to ask:

1: If my forums became active and i wanted to have a seperate forum for say Xbox but it was on the same site, would I have to buy another license or not?

2: If I didn't have to buy a license and i wanted to create a seperate forum how would I/could I make it so members wouldn't have to re-sign up?

Thanks for the help.

~ Mike