I got my offer letter today too, without an interview. I'm so relieved, after thinking of the worst case scenario. I don't think we'll be asked to go in again for an interview (just re read the admissions website). It says once you receive the offer you have to come in (in May/June) for the advice session. Hope that helped?
Good luck for the interview GarryF. I hope to see you there. Won't be in any of your classes though, maybe PHE?
Also, sorry for my depressing previous message, I was just a wee anxious. If anyone's wondering: sob stories don't matter, it's just people who need it.
...and how to stay positive