I have peronally had the same conversation with prospective new Ts...some want more info, some want less. I also thought I would cry my eyes out seeing the new person and I was so focused on answering his questions and trying to get across my issues, I didn't.
So congrats on taking the first step, that's very brave of you...I always find calling at first the hardest part and then the rest anxiety provoking, but I think you can make your way through it and figure out what is best for you...although you sound hurt, you also sound determined and ready to express youself and get the help you deserve.
Story...the T I have now, his listed number is his cell number, that's the ONLY number he has, no office number (but I had no idea it was his cell I was calling). When I called first, I had just been terminated out of nowhere (although terminating T had recommended a few people, and the T I was calling was one of them) and new T ANSWERED. I was completely shocked into almost dead silence as I was barely ready to leave a message. Happily he just wanted my insurance info., and we set up a time, although I could still barely speak...if he wanted anything else I would have told him I couldn't do it right then, ACK. I mean, no T answers there phone!?! I have been seeing him since Oct. 2010 and he hasn't answered it since.
Anyway, I wish you all the best and hope the new T session goes well for you...and others are correct, you ARE interviewing him, so if you want to know things like what kind of therapy he does, etc., be sure to ask.