New mat not working right...

I got a DDR mat from ebay and I played it on the ps2 for a few days. It is alot better than the original konami's or any other ones i've used. My issue is that it has a usb port, but when i try to use it, nothing. It dosen't respond at all. I also tried to use my Ps2 to usb adaptor and that didnt work. Do I need a driver for it? It didn't come with any CD's so im lost. For what I tried to use it, I tried stepmania 3.9, stepmania 5, and xpadder all on my windows 7 pc. nothing worked. Heres the link to see where I got it etc..

http://www.ebay.com/itm/Gamesis-Multi-Platform-Dance-Dance-Revolution-Non-Slip-Pro-Pad-/271130918658?pt=Video_Games_Accessories&hash=item3f20a97f02