Sansa C150 2.0.007a Executable

I have a C150 2.0.007a that’s hopelessly hung, and I need to reload the FW.  Unfortuantely since it is not recognized as an MSC device and thus I can’t copy anything o the root directory, I can not use the standard .rom files to do this – I need the c100 #.#.###a FirmwareUtility.exe to do this.

SanDisk Tech Support has sent me the c100 1.0.005a FirmwareUtility.exe file, and it can communicate with the player, but yields an ‘Update Failed’, likely because I’m trying to put 1.0 FW on a 2.0 device.

Is a C100 2.0 FirmwareUtility.exe available?