Yes. IF you get warnings 'you have placed a high speed usb device in a low speed controller'or something, then you're using the old USB.

It doesn't really matter as far as networking goes, unless your wireless is like forever fast. My parents both use external usb receivers to computer and neither of them have usb2. The router only transmits at like 52kbps anyways, and it falls well within old usb's range.

Munty, all of our computers are from that timeframe(well, excepting my macbook xD), and none of them have usb2