Was going to make a topic for this, but you beat me to it! After just having tried out the latest build of windows 7, I was curious to see if FF8 would work, as I was working through it on XP, and still had a ways to go.
Works like a charm!
If anyone is curious, this is an x86 version, I have an ATI 4850 using windows 7 drivers. All I did was a standard install of the program, then used the 1.31 high-res launcher.
Haven't tried FF7 yet, might in the future though.