Foam Dance Pad

Hello all,

At the risk of sounding insensitive, I just bought a foam dance pad online. I put in the foam, and when I tried to plug it into my computer, I had no signal, nothing showed up. I tried restarting, taking the foam out, trying it on another computer, even blowing on the USB. I am running on Windows 7, and other USBs work.

Here is the pad:
http://www amazon ca/Sensitive-Directional-Buttons-Excellent-Performance/dp/B004L9D1J8/ref=pd_sim_sbs_vg_1?ie=UTF8&refRID=1N4Z0V92M8VZ2B0CZMGC

This is a guess, but here it goes. I've never seen a pad that is actually compatible with PS3 and PC at the same time. The PS2 and PC pads work fine, but as far as I know, pads designed for PS3 will not work on a PC. Even though the description mentions PC, I think it might be from someone who doesn't know that it only works for PS3 and just assumed that because it has a USB connection, it will work with PC. I could be totally wrong about that, but in that case, it sounds like there's a hardware issue or problem with the USB cable/connector part. Nothing shows up at all? No generic/plug and play controller or anything? If you run Stepmania and go into inputs, nothing shows up with it?