Gravis Destroyer and Windows XP

Question

I have the Gravis Destroyer PC Joystick Model 10501 and a Microsoft Windows XP Media Center Edition 2005. I want to hook the Joystick up to the computer, dont see any place for the joystick to go (none of the ports on the back of the computer are big enough). The joystick cable is an 1 x A/V cable. IF there is no way for me to connect it directly to the computer is there a extension cord that would work?