I installed those drivers, and my 3dmark scores went down slightly. Cool idea, but they don't work for me. I just use Nvidia's drivers off their site. My friend with his ATI uses omega drivers and they are much better than the regular ATI drivers. Just my $0.02
You all know those nVidia Omega's in that link are based off 45.23 Forceware right? I was running those a while ago. Better than the original Forceware 45.23 imo. But, if you're running an FX card, don't bother with them. The 52.16 or 53.03 Forceware drivers typically offer up better performance than those Omega 1.4523 Omega's do.