Nah, I'll get the legit version as updates are really important. Probably won't get it till most launch bugs are out though, 4-5 months after first launch probably unless I'll get a dx10 card before that
Taking the risk of installing a hacked version sure leaves the risk of a clever hacker leaving a back door open but that risk is still much smaller then encountering problems with SF.
Link is simply the SF homepage, they're claiming on releasing a full update so games work on Vista soon. We both know that means installing ring 0 drivers as it's the backbone of that cp.