767EUROPE,
You have to relize that most guys that have the information will hord it to themselves and not share it because you pose a threat to them.
Anyhow I am also trying to get an interview there and I have a buddy that went to the interview in London a couple months ago and he said there was one question on the fuel system and when he nailed that it was just a chit chat session about your aviation life.
If you really want to work there just relax and go in there to chit chat with these guys is all I can tell you to do.
That is all I have.
Also be prepared if they offer you the job on the spot and want you to start next day or very soon after that.
Good luck and let me know how it goes.
Hajj Man