Anyone advise me on hooking up a surround sound system to pc??

[big_garryb]

Hi guys,
i bought a surround sound system around a year ago from an auction and never used it. thought i could wire it to the pc.

there is a sub, control box and 5 speakers.  i thought the speakers should all plug into the sub-woofer. there is then a cable (looks similar to s-vid) which i thought should go from sub to controller box. I then had a jack-phono convertor to plug pc into the controller box. once al  is switched on i get the humming noise from speakers, but cant get any sound through......... am i wiring something up wrong??  the speakers were tested seperately and all work.

thanks for any help.
Regards,
garry

[Silverwind]

Is there a brand/model number on these speakers? It might help out if we can look up what connections it has on it.

[big_garryb]

sorry ive been busy getting ready for moving house....... stuffs all packed up - i will get the model/brand when i get into the new house.
garryb