Lost my sound on new computer

[staticsx]

Hey all hope you can help. I have a less than a year old gateway computer with windows vista. I did the service pack 1 update and lost my sound. I have the Creative I-trique 3200 series. they worked fine before on this comp now it's like they don't exist. I have tried everything but I am not all the computer savvy. Please help

 

[staticsx]

Also in Device Manager, it says under sound, video, and game controllers:
Realtek High def audio:
Unsupported game port for creative:
VIXS Pure Tv-U 4899 (NTSC/ATSC Combo:

I am thinking my problem lies with the unsupported game port for creative beings that what my speakers are. They have not been unplugged or moved, and worked fine untill the vista service pack 1 update.

 

[staticsx]

Realtek must be the original sound the comp had. I have an aftermarket screen and speakers so Realtek should have nothing to do with me. Right?

 

[staticsx]

Main Circuit Board b
Board: ELITEGROUP MCP61PM-AM 1.0
Bus Clock: 201 megahertz
BIOS: Phoenix Technologies, LTD 6.00 PG 04/27/2007

Is this my motherboard? I am seriously stumped.

 

[staticsx]

Anyone help?

My system model is gateway 5474 if it helps? I have no idea what to do besides install a new soundcard.