so i might upgrade a computer soon, who knows if i would get vista or not, anyways, would vendetta work on it if i did get it?

I know of no reason why it wouldn't. However, it's never been tested on Vista as far as I know.

I will say this, if it does have problems and you provide us with plenty of feedback, we'll get any issues sorted out as soon as possible. I expect it'll work fine though.