Vista - network card issue

i recently bought a pci network card, specifically a a Intel PWLA8391GT 10/ 100/ 1000Mbps PCI PRO/1000 GT Desktop Adapter. after the hardware install, i booted up, and to my dismay, vista doesnt recognize that ive installed a new network card. im using the card to hook up my xbox 360, so that i can access xbox live through the university's network. i have the xbox hooked up to the pci network card via crossover cable, and when i turn the xbox on, i get green leds on the back. you think you can help me get windws to co-operate?

can anyone help me?

Does it show up in the device manager.

nope

Did you install using the drivers that came with the card or have you going to the manufactures support side and got the drivers fr0m there?

i went to intels support site, downloaded and began installation, but at the end, it tells me that no intel products were found.

Have you tried different pci slots?
sorry for the questions, but i'm trying to eliminate all the things I've had to do in cases such as yours.

I would try removing the card
Installing the correct (Vista) drivers
Shutdown
Reinstall the hardware making sure the card is seated properly /s securely
Reboot and check device manager for the card / connectivity

so you're saying to remove the card entirely, and then install drivers, then place the card back in? when i already have the card in there, and i try to install drivers, the installation tells me, at the end, that no intel hardware was found. and yes, i did try switching pci slots, though when i did, i got a beep sound from the mobo, so i think im gonna switch back.