There is no simple answer to your question. This is a four year old board that ASUS stopped writing drivers for in 2004. It uses a SiS655FX chipset, so you could "experiment" with drivers from the SiS site (
www.sis.com) -- but unless you REALLY know what you're doing, I would strongly recommend against it. Even the SiS site recommends against simply using their drivers -- because the motherboard vendors often customize their chipset and thus provide custom-developed drivers.
You could also google for some of the "driver" sites -- but I would strongly suspect any drivers they claim will work with a four year old chipset.
Basically you're out of luck.