Update: Easier solution found
Glad to see this worked for some others. A few months later I was going through this process again and found a simpler solution. The original method described replacing a driver file, but since the driver is signed, replacing the file with a newer version...
Workaround for nVidia display driver issue
Motherboard: ASUS M2NPV-VM
BIOS Version: 0504
GPU: nVidia GeForce 6150
in Windows 7 RC
Symptoms: Stop Error 0x0000001E caused by nvlddmkm.sys during Windows 7 RC setup
Solution: Replace the nvlddmkm.sys file with a newer version
Update: Easier...