Z5500 either sub, front or rear speakers work

Hello,

My sound card is:SB X-Fi Audio [B000]
Windows XP
All updated drivers

I have a problem with my z5500. My pod broke and i bought this:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120568328207

it's got 3 jacks, and just one of them works at the time. I dont know how to explain it well so here ill show you a picture i made.
https://imageshack.com/
So basically just that one hole works, i guess the other ones are for mics/etc.
How can i make it work? with the pod i would just plug the green cable and the whole system would work, but now just one of the three jacks works. For example if i instert the subwoofer cable in the hole that is shown in the pic, only the subwoofer and centre speaker will work.
Thanks