Success!!!
I was about to email MSI and their website required all this info about the motherboard and my PC in order to send tech support email, so I went and dug out the box the mobo came in, and out popped the installation CD. So I thought to try installing the audio drivers on that before emailing the company, and lo and behold it works. I've remapped the 3 ports on the back and now my 5.1 speakers are connected and working well!
It's so strange that the drivers MSI has on their OWN website for this model of motherboard doesn't work!! I'm sure glad I don't have to shell out another $20 for a sound card.
Now on to install their so called onboard embedded "Soundblaster Cinema" sound, so by the time I'm done I will have Realtek, AMD, AND Soundblaster audio processing. Knowing my luck, it's going to break my audio again!!
Thanks for everyone's help on this matter!