Don't know numbers at all -- I never did the program. But it's success rate honestly varies every year. The class that did the "post bacc" program in the 2001-2002 year -- 12 out of 13 got into med school (all of those 12 came to EVMS). This past year, those who had done the med-masters 2002-2003 -- the numbers weren't as "pretty" although most got into some sort of program or another. A couple didn't get into any field. A couple went to DO. I think one went to podiatry school. Another went into dentistry and still another veterinary medicine. The program is fairly small -- I think they intentionally keep it under 15 people. The med masters do most of teh classes with the med students. You're expected to make at least a high pass in most of those classes (esp since if you get admitted to EVMS, you'll be expected to tutor/help out with the classes since you won't have to retake them). Depending on teh class, if you HP/H, you will not have to repeat it (assuming you come to EVMS) when you get in.
In general, the program is used mostly by those who want to enter EVMS. Esp by those who really fell in love with EVMS during their interview but didn't happen to get accepted, and so they want to boost a way to get into EVMS. It's a small school, so the professors will actually personally speak on your behalf on whether and why you should be admitted (after you do the program that is).