Intel(R) pentium (R) 4 cpu 2 66GHZ audio driver compatible?

Firstlt, have a look on the motherboard near the audio output and see if you can identify the chip by sight. If you cannot identify the chip I recommend downloading driver pack solution for free from here:

http://drp.su/download.htm

The lite version will identify the missing drivers and offer you a download link, the full version contains all the driver packs. I have the full version burnt to a DVD and it is really useful for drivers for older systems.