Step 1. Go to the ALSA web site and check if the sound card is supported, if it is then copy down the drivers name.
Step two. Open the file system, open lib/modules/2.6.22-14-generic/ modules.pcimap and see if the driver is listed. If not look in lib/modules/2.6.22-15-generic/modules.pcimap. If the driver is listed in one of these files then....
Step three. Log in as root, open etc/modules file, enter the named ALSA driver and re-start the machine.
If the driver is not listed at the ALSA web site, check the OSS web site and if it listed there, then down load the OSS system in.