Oh yeah! Good luck to you! Other than that one person, do you know anyone else that has heard? I would think they would send the letters all out at once.
Good luck in the interview, I however did not get an interview The only thing i can think of is that I do not have my chemistry or physics class finished yet? Guess I'll just work on them and then any other classes I can take as an unclassified student!
I also applied at SIUE for spring 2011...I have not received an interview letter either. I am hoping it will be coming soon, the last letter said they were going to reivew the applications over the next 3 weeks, which it has been almost 4 weeks! Good Luck!