No such thing as a motherboard driver.
The board has a SiS 645 chipset, you could get the driver for that off the sis website. USB support is native in XP and should work OOB.
Audio driver will need to be Sigmatel (chipset - STAC9750T) - again, Sigmatel w/s or google.
Ethernet Realtek RTL8100(BL) download from Realtek website.