It should've come with a floppy disk with the drivers, although as I've said, MSI should have the drivers availible to download from their website somewhere. If that fails, you can always try googling it.
It's important to note that when you are installing windows, you have to watch the screen very carefully. The option to press F6 is only there for a few seconds, so you don't want to miss it.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w