You might want to go to
www.smu.edu and find a phone number for the admissions office. Call or email them and ask about the online chat sessions they are hosting. They have a site, where at certain times of the day, prospective students can log on and ask questions of current students, in a real-time chat room. I believe you'll need a password though, so email the admissions people and see what they say.
You've already shown interest in SMU, and are that much closer to making one of the best decisions by coming here. Great school, great city, great people.
From high on the hilltop, in Big D...