These are the latest sound drivers for the V266B, but should work on all the boards above. They also include Applictaion.
Marked on Jetways site as..
Alc_sound_full.zip (05/21/03) 18.5M Sound ...Onboard Codec ALC 201 driver for All Windows Operation System Rev 5139 full version (include Applictaion)
I have marked them as XP, but looks like they have all the files from 95 to XP included.