Look like Xaero001 has released his new StarStorm 56.72 Forceware based off the Official WHQL Nvidia 56.72's. He has released the X/XQ/B versions for 2K/XP and is due to release his StarStorm 57.30 64-bit Forceware soon. One of his main fix's in these drivers include:

Doom III Alpha/Beta flickering and not working on some nvidia cards

All the fix's and changed from his previous driver can be viewed here in the official post in the StarStorm nvidia Forceware section of the forum on Guru3D