I was having the same problems with my CardPuter not being recognised when connecting to USB with the Go button depressed but after reading through this thread I finally tried another USB 'C' cable and the Windows 7 system finally tried to install drivers for the unit.
It installed one USB driver but failed to install the 'USB JTAG/serial debug monitor' driver.
Where can I find this driver to download for Windows 7 ?
At the moment when I hit the 'Burn' button on the Burner program I get an error box pop up which says 'Get mac failed'