Help!! Multi-GPU configuration

I don't know where else to go. I recently got an alienware with the geforce 9800GX2. In device manager I only see 1 shouldn't there be 2? and I dont even see a way to turn from single GPU to a Multi-GPU. WHen I first started I changed it somehow then tried to download some drivers and went back to some **** VGA standard card so I did a system recovery/restore to put it back to factory settings.

Now I only see one geforce 9800 GX@ under display drivers and I can't figure out how to do the Multi-GPU setting. Wouldn't that be better since the 9800 GX2 is dual 512 cards? If someone could give me a step by step process to turn this on I would be extremely thankful.

phail. ever since i saw the title, all i had to say was phail.

(if you dont get what im saying, i mean to tell you to take this to pc hardware.)