Thought I'd let everyone know that I found a fix for my problem with no audio using the Iatkos Mac distro (on a Dell desktop).

I couldn't get my onboard audio to work, so I went out and bought a $20.00 Diamond Sound Xtreme card, then installed theCMI8738PCIAudioDriver.kext and voila! I have audio.

Cheap resolution to a frustrating problem!