ask for help for my kext for mac i have a nForce 790i Ultra SLI and i am not sure how to get the drivers for the audio or Ethernet and .thank you for your help

the system is install directly with iboot 2.0 and then i installed snow lepard with safe mode -x and the update 10.6.4 and 10.6.5 and that is all i have done if there is any other instruct of how to get the Ethernet or audio to work. please contact me i would love your help thank you and have a good day

MB: EVGA nForce 790i Ultra SLI 132-CK-NF79-A1
CPU: Intel Core i7 2.8GHz LGA 1156 95W Quad-Core Processor
VC: GTX 295
HD: Seagate Barracuda 7200.11