Connecting 5.1 speakers to on-board Audo Card

[TerminatorT850]

I have on-board/built-in/integrated Creative Sound Blaster PCI128 CT5880 sound card on my motherboard. Recently, I bought Creative PCWorks LX520 5.1 Surround Sound speakers. The connecting cables have 1 subwoofer lead, 1 front & 1 rear speakers lead. My on-board sound card has a green, blue and pink inputs. I connect the lead into the green one & all I get sound in front OR rear OR center speaker. HOW CAN I GET THE SURROUND SOUND 5.1? plzz reply
It'll be appreciated

 

[Illegal Amigo]

You don't have a surround-sound onboard sound card. You have normal 2.1 onboard support -- the pink is microphone (i think) and the blue is input. You're going to need a 5.1 soundcard -- I'd recommend Turtlebeach.