Terrey,
As spannersatcx, my first concern was what the computer was turned off when you installed the PCI card, the PCI Slots are not Hot Plugable. I am worried you might have damaged the card and the motherboard itself.
Take Care,
Richard
P.S. If the computer was off when you installed the PCI Card, did you check the card maker's website to see if there are WinXP Drivers for the card?