You can download the manual for your motherboard from the makers website and see how to connect the front USB. You should have recieved a CD with the motherboard that also has the manual on it, usually in PDF format(Adobe Acrobat). If you can tell me what model and make the MB is i can look it up. From what you are saying it sounds like you have installed a USB/Firewire PCI card in your computer. If you did do this you should have installed the USB drivers that came with the card before you installed the card. Instructions that comes with the card usually tell you this. we will continue with this but right now i need more information. Make and model of the old computer the parts came from would help.