Hi again Russ,
Your Foxbat photos show the PAW Classic which was supplied with a Version 1.1 or 1.2 Raspberry Pi - RPi2B+, which doesn't have Bluetooth built in. The Bluetooth function only became available with the release of the RPi3B (which forms the core of the Rosetta) - though Bluetooth support isn't in the current (Version 20180520) PilotAware Public Release Software.
Bluetooth is also available on the newer RPi3B+ - but this model is NOT yet supported by PilotAware, though a few of us in the Test Team are running PilotAware 'Engineering' Software under test on the Pi3B+, so you might like to wait for the next software release, or go down the Rosetta Upgrade Route to RPi3*.
*Note: The Classic to Rosetta DIY Upgrade Kit DOES NOT include a new Raspberry Pi, but you could try dropping an e-mail to support @pilotaware.com to see if they can help.
Best Regards
Peter