Usb Sound Card Issue..!

USB SOUND CARD ISSUE

i just purchased this usb 3d sound card and to my surprise it detects as plug and play on windows 7 without any driver disc... the shopkeeper states its windows 7 compatible.. but somehow on the box it only states winxp...

has anyone tried this device..

::COMODOW::

http://www.comodow.com/product_b.asp?model=PD552