Good news, I figured out how to get color profiles to work in vista... kind of. First, get your Mac color profile, throw it on a flash drive, and put it on your Windows partition.
Then, double click the profile (.icc file) to install it. Next, you can go into the Color Management settings on Vista to set it as the default profile for your monitor. But that won't do anything.
Now, download this little app:
http://www.xrite.com/product_overview.aspx?ID=757&Action=support&SoftwareID=539. You can use it to force the color profile to be adopted. I haven't figured out how to make it be adopted by default.
You'll notice, though, that Vista looks really terrible using a Mac profile. The color temperatures of the two platforms are just completely different I guess. I'm going to experiment with making a mac profile with a cool color temperature and using that one in vista.
If you wouldn't mind, run Bioshock using that procedure and let me know how it looks. I'm curious to see if games will look horrible under a mac color profile, or if they'll look better. Again, I only have Fallout installed right now, which is a really bad way to estimate color.