Bob,
I think sandcastle has been in the sun too long.
Check out
www.emirates.com, it has all you need to know about what you need to get a look in to the selection process.
For the interview all you have to do is be yourself. It is not a hard process, but it is thorough. There is a book on the process, but I am unsure as to how up to date it is .Try posting on the Canadian or UK forums as I am sure someone there will know where to find it, and how good it is. Also search PPRUNE as a lot of info has been posted on this matter in the past 18 months or so.
Good luck.
Don