As I said you shouldn't have had to go that far. In your gui try finding your souncard and also edit the sound settings. I was able to get mine working by rebooting and modifying some sound settings
Other than that I can not help you further than what I did. I did not need to modify any files. I simply installed the ALSA files rebooted and played with the sound settings in the gui. I checked a box in the options and "poof!" it worked.