Hi ZeroCool2u,
I think you just sold me ;~) *drools with envy*
Getting to your question, your MSI K8N Neo4 motherboard is 7.1 compatible, so you shouldn't have any trouble hooking up your new headset.
You'll have to
configure your setup within MSI DigiCell first though. from the manual, it looks like it will give you a colour code telling you which jack is which, when you select 5.1 from the "speaker mode" section.
now, going by
this picture I found of your headset, the analog audio connectors you have are on an adapter, and colour coded. They are as follows:
Green plug- your front two channels.
Black plug- Your back two channels
Yellow plug: Center channel/sub
Pink plug- Microphone
so, plug these in using this as a guide, and you should be good to go. I'm unsure if you need to plug in the USB connector along with the rest of them, or if it's just there if you want the headphones to do all the rendering instead of the soundcard, so you might want to test the headset without it plugged in, initially, or refer to the users' guide.
although personally, I'd reccommend investing in a dedicated soundcard anyways- Integrated sound systems take away resources from the Processor and RAM, something which you want as little as you can of when you're a gamer trying to make the best out of your system. I'd reccommend any of the
creative X-Fi series, for their overall sound quality.