First, you forgot to run lilo after you edited the config file.
Second, what, exactly, is the problem? You haven't given us anything to go on! Does the module appear to be unloading itself, do you need to run "alsamixer," what are the symptoms? And what do your problems with your soundcard have to do with your NIC? Do you think loading your NIC affected your soundcard? We need more details!
Edit:
Isn't the command "insmod" now?