You fully uninstalled the USB drivers as described in the readme? That's really the first thing to be compleetly sure about. One of the empeg guys was looking for information on usb chipsets that won't work with the usb driver, so you might want to dig up that thread. You'll be far better off if you bite the bullet and get ethernet set up. Though all the official features work over USB, many of the unofficial ones only work over ethernet.

Matthew