I have installed but it doesnt boot. I think its probably my hardware. I have

processor : AMD Athlon 64 3200+ (MMX (+), 3DNow! (+), SSE, SSE2, SSE3, x86-64)
northbridge: NVIDIA nForce4 rev. A3
southbridge : NVIDIA nForce4 MCP rev. A3
graphics card : GeForce 6500.

Forgot to include I have SATA drives.

I have just installed the kext for NVinject but it didnt change anything! Can someone please help?