Is the phone recognized by RSD Lite in fastboot mode with these drivers?
I have the Motorola drivers, using Windows 7 SP1 32-bit.
With USB debugging enabled I get a "Mot Composite ADB Interface" device in device manager (Driver Version 188.8.131.52).
The phone can be seen by 'adb devices' and in fastboot by 'fastboot devices' however using RSD lite 6.1.5 no device appears.
Devices: Moto G, Nexus 7 (2012), MK808B, MK802, True Beyond Tab 3G