I think the problem everyone is having with WindowsXP is that it's got some kind of a Rio USB driver included with the operating system. XP owners will automatically choose that driver when prompted instead of going in and selecting the correct Rio Car driver.
Has anyone successfully debugged this situation, and can anyone outline the EXACT steps in XP for de-selecting the piece 'o crap Windows driver and selecting the correct Emplode-installed driver? If so, I will put it into the FAQ with credit.
And Dmob: You are the perfect guniea pig, wait for the instructions to appear in this thread, then let us know if they worked for you.
In the meantime, use ethernet if you can.