Alan,
With regard to the query from BT on D-ABKI, I seem to remember it coming up in AN as a B737 of Air Berlin but the corresponding photo showed the the previous holder of the registration, a B722 of Lufthansa. This is perhaps what is causing the confusion.
BT
You will need to delete the photograph of the B722 from your own database and also Database Explorer and hopefully the system will replace with the current Air Berlin B737 photo when you next log the aircraft.