Big Eric:
As for Flybe not showing,I don't think Embraer or Bombardier (Dash-8s etc.) fit ADS-B into any aircraft - I stand to be corrected though !
There are number Embraers with Lufthansa and Finnair call signs flying around and they are all visible on flightradar24.com. It's the carrier that decide if they will install an ADS-B transponder.