i have iwith its on floopy power supply and i hooked it up with a serial to usb cord internally and all it says graphice in any direction and thats it i would like to get software work with my snapstream media or media center edition

I installed GLK12232-25-SM-WB on my HTPC computer but i have a problem i am trying to get it tp work with my Media center edition for windows xp or at least get snapstream media to work with it pleases can someone help me