Newer, Better ALC889A

It's the weirdest thing in skype...
I'm running a 'gigabyte ga-ep45-ud3p' on snow leopard, installed from a retail dvd, using these sound drivers.
I can hear someone, and they can hear me, if they call me.
But if I call them, I can't hear them, but they can hear me.
Also, if I type in the chat area with anyone during a call, whether they've called me, or i called them, I can't hear them, but they can hear me. My sound gets muted if any sound comes from skype other than the voice conversation.

i have to disable all skype sounds for a call's audio not to be interupted.

i downloaded the zip below where it says
'Fixing for 10.6.2 by removing BuiltInHDA and including HDAEnabler.kext' in this thread ↗
and installed the LegacyHDA and HDAEnabler kexts, and that's it. no dsdtl (or whatever you call them) files or anything.
then i used aggregate device to create 5.1.
the sound is a bit buggy.

is there a newer, better way to get 5.1 on my ga-ep45-ud3p?

i'm a noob. i have been on os x for maybe 4 days, for about 30 minutes a day

[edit] a kind member in the #snowleopard irc channel was nice enough to create most of the files in this 'Extra' zip file (media fire.com/?mmkiumnozr5) for me, but after i applied them all, and ran pfix and repaired disk permissions, i ended up having a blank blue screen, and wasn't able to boot without -x