Hi!
From what I've heard, if you only know the ATP stuff, you will fail the interview.
Go to pprune.org, and/or search here, go to flightinfo, etc. to learn what you need to know for the interview. It is an extensive list of stuff, including one or two books. They should ask you questions about Hong Kong, the company, etc., etc. We had a guy go who didn't learn all the recommended stuff, and he was asked multiple questions that he had no idea he was expected to know the material that the questions covered.
Good luck!
cliff
ATL