It is best to chat on VHF and exchange an email address at the time, with dealing with CX flights.
Sadly CX Management have some major issues over photos taken from the flight deck.
Many years ago (way, way pre 911) some Hong Kong Star-lett was on the flight deck going to Japan. A photo was taken, with a contrail in the background.. leading to front page headlines "Beautiful, almost naked star in death defying close miss to jet smash murder death mayhem" headlines.
If you know the flight number and date in question, PM me and I could try to pass on your email contact, if I know anyone concerned.