How do i make battlefield 2 work on Window vista ultimate x64bit?

These forums are better with computers, they do lack support for gaming, or old games. Try googling it.

i've had it working on both vista 64 and '7 64, both times just installed and thats all, I think it runs as admin, so there's nothing specific you have to do for x64. check some of the bf2 forums there are a lot of experts there and are normally helpful.