np mate,
heres the audio kext you asked for in the PM, i post it here because i cant upload it in the PM
go to S/L/E, make backup of your current AppleHDA.kext and place the patched kext there,you need to backup because you will need to replace the "patched" one with the original one if you want to update when there is an patch available for 10.8 and switch it again after you updated but before you reboot.
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this kext has only input from mic, output from back-green connector and headphone output from front port, but you have to change it manually in setting if you want to use the headphone output, os x does not recognize it automatically if you put your headphone in.
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while im posting to you, try to install something from the app store (something free, rss reader or something else)
if you getting an "cannot verify this computer" error, i have a fix for that too.
so let me know if you have problems
grtz