Need help with DSO Nano (DS0201 actually...)

Ive got the "older" version of the DSO Nano, has an RF type plug for the scope probe and play/pause logo on one of the keys.

It has version 1.5.20 firmware, Id like to upgrade it to the latest BenF, but when I plug it up to my computer it says Device not recognized. Im running XP SP2.

A balloon does pup up and says "STM device in DFU mode" after the "Found new hardware" balloon.

I cant locate device drivers for it either.

Any help would go a long way,
Thanks!
Andrew

Heres what I get when I try to install the driver (which is not on my computer

TTT please