Here is the link for all the LAN drivers for your particular board; I have found with my ASUS mobo that sometimes it depends on which download site you get the drivers from. Basically; if the driver doesn't install properly from one site, try another.
I just installed XP onto my computer and I cannot find a LAN driver that works for the life of me! I have an Asus a8n-sli premium motherboard. I went to the Asus website and downloaded the drivers they had their but for some reason they didn't work, Can anyone help me?