Air Holland is in a strange situation. The B757 was indeed parked at Maastricht and went to Manchester a couple of days ago and is now parked there.
In the meanwhile, a lot of other airlines are flying for Air Holland at weekends. Air2000, Sabre are just a few. Highlight this weekend was the Airbus A330 of VG Airlines, which operated three flights for Air Holland.
Rumours say there are some problems with the Dutch Civil Aviation Authority to get aircraft registered. Air Holland is also supposed to lease a former Air France B767. This aircraft is now at CDG waiting for things to happen.