Bc2000 (for the BCF2000 & BCR2000)

I'm trying to send a sysex patch to the bcr2000.  its not working out.  i have a few questions:

A)  Does BC Edit work?  it always gives me an error when i try to actually send anything from the preset menu to the bcr.

B)  Will BC Manager send via usb or does it have to be through midi?

C)  Has anyone written a good working patch for the Korg DSS-1?

Thanks in advance,

Ben