I tried scvs-dm500 - it does not work on my box. I need to try an even smaller image before my DM500 goes into trash bin.
The only image, that sort of worked so far is schaedelmeister-neutrino-dm500-18032008.img.
Images larger than 4,6mb give me this:
box type: DM500
Ping result: OK, box is alive and speaking to us ;-)
Uploading file to box...
erasing flash...
flash-erase failed, box will be unusable now!