Have you installed the right drivers?
Have you installed the ATI driver? Maybe that will work?
Hva you tried with ALSA? A while ago, I tried suse and fedora, but I couldn't get my soundcard work. When I tried Slackware and VectorLinux my soundcard were found and worke when i used alsaconf...
I don't think suse have alsaconf installed by default, so mayby you should try to install alsaconf
Maby you can use the madwifi driver? Check if you card is supported by the driver...
I hope this will help you...