S/Pdif out, surround L/R/C jacks?

I just bought a new ASUS A7N8X-E Deluxe motherboard with the Nvidia Soundstorm APU. (Which I heard was awsome, especially for an MB APU)

http://www.newegg.com/app/ViewProd [...] WSE&depa=1

Unfortunately, since the user guide that came with the MB was rather weak, I have no clue now what S/PDIF jack out Surround L/R and Center/LFE audio are for, and how they are different from Line in/Bass center, Line out/Front speaker and Micro/Rear Speaker Out? I assume that it has something to do that you use those if you want a dolby digital sound, and the Line in, Out, Mic is only to be used if dolby is not supported (In other words since I have Surround jacks they become useless to me, unless used only as input jacks for mic etc.)

Like I said before, I am really just guessing here, and I would appreciate a clarification before I go out and buy me some 5.1 speakers.

Thanks a lot,
DrAmar

Ps. On a great note, it looks like I have made enough posts on this forum to get the honorary title of "newbie" as oposed to "stranger"

I don't even believe in JEBUS!
Homer, you are on the flight to a remote island where you will be doing some missionary work.
SAVE ME JEBUS!!!!!!

Thanks,

But what are the Surround L/R and Center/LFE for as opposed to rear, front center. Which ones do I use?

Picture enclosed.
http://www.newegg.com/app/Showimag [...] 478-01.JPG

Blue, Green and Red vs. Brown, Lila and Yellow?

I don't even believe in JEBUS!
Homer, you are on the flight to a remote island where you will be doing some missionary work.
SAVE ME JEBUS!!!!!!