Flights appear to have disappeared from the timetable as well now :-(
I see that the Dusseldorf services are shown on the route map as from Stansted.
This is a shame; I really believe that the flights to Amsterdam (but not any of the other ones) could have worked if ticketing arrangements had been available from the beginning. I have wanted to fly with them three times this year, and I know other people that have wanted to fly with them as well.