I have been working on this myself. I can get the software to start loading from the USB drive but it doesn't complete. I just get a # prompt.
These are great boxes. Lots of them have come off lease lately so they are very affordable. The boot Open-e Boot CD does not work with DSS LITE but I would like to get a copy to see what they do so I can create my own.
The IDE version won't work with these boxes because there are no power connectors. I have tried a TEMPO HD card that mounts a 2.5 laptop drive but that doesn't boot.