I'm a current IMS student so hopefully I can shed some light on your questions. It is no longer a program that you specifically apply to. Instead, applicants that do not make it into USF MCOM are screened, and if they match certain criteria they are invited for an IMS interview. Starting this year (2015-2016), the IMS program is a conditional admit program, essentially meaning it is a 5 year MSMD program. You take all classes with first years, including anatomy lab, and assuming that you have at least the minimum required MCAT score and make at least a B in every class, you are admitted to the MD program the subsequent year. In the past, it has been a separate program and despite still taking classes with MS1s, there has been no conditional admission so students still had to complete AMCAS and go through interviews at prospective schools, etc. Overall, the program has been a great experience! Please let me know if you have any further questions!