Welcome to PC Mech.
Are the driver files not on your motherboard CD?
Try
www.driverguide.com, use the user name "driver" and the password "all" both without the ", from the information you put in your post your search should be relatively simple.
I just did a quick search for you and found this driver, it is a zip file, have you got a copy of winzip? I have scanned it and it is virus free. Just click on it to download it to your computer.