try this:

edit the file "/etc/modules-2.4.27" (or -2.6.7, depends on the kernel you are using)
and add

snd-az2302

to the end of the file.

Then edit the file "/etc/init.d/bootmisc.sh"
and add

/etc/init.d/alsa-autoconfig

to the end of the file.


I 'think' that should work. There is probably a better way to do this.
Good luck