According to the MoD's webpage bit about defence in the meeja:
Problems are alleged to prevent the AMRAAM missile being carried by Tornado F3 aircraft.
Comment: An integration programme for the aircraft and weapon is nearing completion.
So - the MoD appears to be saying that there's nothing in the story. Now, call me a tired old cynic (thank you), but this usually means that the story must be ture. However, wonder if, for once, the bad news isn't as bad as thought?
(Now call me a naive optimist...)