modprobe au8830 Using /lib/modules/2.4.20/drivers/sound/au8830.o /lib/modules/2.4.20/drivers/sound/au8830.o: The module you are trying to load (/lib/modules/2.4.20/drivers/sound/au8830.o) is compiled with a gcc version 2 compiler, while the kernel you are running is compiled with a gcc version 3 compiler. This is know to not work.
cat /proc/version Linux version 2.4.20 (root@midas) (gcc version 3.2.2) #2 Mon Mar 17 22:02:15 PST 2003