I've been complete there since early August too. I'm bummed because it was one of my top choices (I guess "choice" isn't quite the right word, is it?). I did try calling admissions last month, but they told me in a somewhat irritated tone that I should check the web and they would let me know about status changes. I wish they'd give me an interview...
they may be waiting for the last of the applications to roll in before they start handing out the waning interview spots. i think their secondary deadline is dec 1. i just turned in my secondary last week (LORs in transit).
i went to high school that is across the street from usc, we had projects at their schools, bad vibes
the commute there is deadly as is the county hospital
so dont be upset if you are not hearing anything
but good luck anyways