ok so i had FF7 on my other comp with windows xp for a while now, and i installed and uninstalled so many mods i was not sure what was on it. but i recently got another computer with vista on it and have spent all day getting ff7 to work on it. so far here is my mod list that works with minor bugs:
1.02 patch
true motion patch
k-lite codec pack (3.0.4)
movies on HD
YAMP- 9999 limit break
    Gyptinstant
    minigame fix
    Krucis default run
    transparent dialog box
prp char.lgp
APZFREAK bustersword
New Spell Patch by zero88
Slayersnext's tiffa, yuffie, and weapons mod .62 (minus the buster sword)
and someones high res cloud battle model. im sorry that i cant give the creator credit, ive just looked at too many cloud models to remember.
ok the minor bugs that i mentioned are as follows:
sometimes at the end of a movie the screen stays black but the gypt mod fixes that when i hit ctrl-D
at the beginning when cloud looks up at the reactor and the screen goes to behind his shoulder, he stays small instead of gets bigger as the camera gets closer. (this is right after u name barret)
im still having the invisible materia problem, but i think that is just because i install the prp mod the way that i do, if you install normally then it shouldnt be an issue.
and for some reason, the scene in the train car right after cloud jumps in the train is silent.
ive only played for a little bit, but this is what ive run into so far, so ill post more if i find them