Help!

How does one get the onboard AC97 sound to work? I have never dealt with it before. I need a rundown on how to install and get working. Athlon 1.1, WinME, Asus A7V133 w/current BIOS. Shows installed in device mgr but no sound. When I force a sound in control panel it says "Unable to play .... sound card may be in use"

Thanks in advance....