I understood that Avion Express were going to be operating for Virgin? They have been recruiting for LHR based crews for several weeks now with a start date of March 2013 which ties in with the Virgin timing for their domestic services.
Indeed that would seem the case:
Carrier opportunities
Avion Express is recruiting Airbus A320 pilots and cabin crew for a longer term contract for scheduled operations based in London Heathrow, starting on March 2013.
Mabye people should look closer to home...