I too am a bit confused...

My situation is as follows:

I have boked an AONE3 ex. TPE. Got all flights I wanted except the LHR-HKG flight. EF shows A4 on flight CX252 (8/9/07). AA RTW desk told me that CX252 is not available, and I would have to take a later flight.

Maybe I should try calling CX directly? Any help is gladly accepted.