I guess we got off on the wrong foot... I admit the original post is a bit "undescriptive"...
Let's take it from the top:
I have Windows 2000 (final retail blaablaa), and I have a Voodoo 3 2000 card. The problem is that, even after installing the hacked drivers, direct3d is buggered. For example, if you go to Display Properties->Advanced->3dfx Voodoo 3, you can see that the options Glide and Desktop are "available", but DirectX is blurred...
Quake III works fine (of course), but any other game that requires dx3d is buggered. For example in Rally Championship it only give you the "software display" options.
What makes this interesting is that if I run dxdiag, it says that everything is ok, (yes, I can see the spinning cube)...
I hope this post clarified my problem.
So yeah, and Kiss Ass X-Mas to all of you!
-LaTe