apjwright,
Are you connected to the internet at the same time when using RadarBox? The database should update on new entries and you should find the vast majority of Heathrow traffic should be covered fine.
However we do understand there are some issues with the database and apologise the database updaters team are doing a great job in correcting them. Dev team is also working on trying to resolve the update procedure to your local database.
bratters,
We have a linkup with FlightStats to get route information, the major carriers who are not using alphanumeric codes (i.e BAW777) rather than (BAW78G) should be covered in this as well. We do understand the online route database does need a refresh and this is being worked on.
Regarding the alphanumeric codes, there is nothing at the moment we can do regarding this, and its in the hands of FlightStats to whether they can work out the lookup tables (not easy in many cases)