Integrating Sound Blaster X-Fi with home theater audio system

Here's what I'm trying to do. I hope I can make it clear enough to make sense.

On the simplest front, I'm trying to integrate a computer with a home theater system (or something like that). Here's the basic layout. But I think I'm missing at least one piece to make it all work.

Computer with Sound Blaster X-Fi sound card (has the green orange black blue outputs). I used to run this sound through a Klipsche 5.1 system until it died a month ago. Now I am planning on upgrading my television and getting a new 5.1 audio system and want to know how to get the computer's sound card output to connect with the home thewater's 5.1 system.

Will I need special adapters to go from whichever is the correct output of those green orange black blue outputs? I haven't seen any systems that have an input that will accept what my sound card is using for output, thus making me think I'm missing something.

So, before I buy, please advise.

Did I leave anything else out? Please ask. I'm a newbie at this, so please use appropriate language so I can undersand all the help you can give me.

--John/Ymir20Mil

Someone off the list suggested I try the optical out port. Since I've never used optical in/out for anything, I didn't even think of the optical out on the front panel of this sound card.

Whaddaya think, folks? Is this the solution? Is optical a valid and workable solution?

Or...would optical only output the CD/DVD? (I'm hoping to output ANY sound coming *from within* this computer *to* the 5.1 home theater system--not just the CD/DVD.)

--John

Thank you to everyone who offered up something to chew on. I think the optical out is the way to go for me. I'm not a gamer, so no need to bother that "multichannel gaming audio will require Dolby Digital Live or DTS Interactive" (though I'll keep that in mind if my tendencies shift toward that realm).

I feel comfortable and excited moving forward and putting this system together.

Thank you all!

--John