Sorry for the late reply everyone! I was getting involved in PDC and also got a job at walgreens, so definitely time consuming ^^
As for the interviews go, people have answered a lot of questions before me. But it is a closed file interview, so prepare your speech about yourself and what you want to make them know about you. Also, they ask about block scheduling (how it works, etc), the founder of the school, curriculum, why did you choose this school, extracurricular (will ask you specific events regarding to your leadership positions, volunteering experience, etc). It would be a great idea to throw the interviewers in the spotlight when they ask "do you have any questions for us?" section. You guys should ask something like what kind of books or magazines do you recommend that can better myself both scientifically and life itself. As you know, it's not just them interviewing you, but you are also interviewing them to know about school and to make them nervous as well..haha
As far as the essay goes, it's a general guideline within the field of pharmacy. I don't know what they'll ask since it's probably different every year.
For the critical thinking exam, the most close that would be correlated to is the LSAT...specifically the logic section. You might want to stop by at a bookstore and take a look at it to get a feel of it
I think there were around 33 questions, and have about 45 minutes to answer it.
I hope I answered most of your questions or concerns!