Quick question about transcript updates

Hey, I just had a quick question. So I applied for September, and got in. I've done a semester at a university, and I took three courses that pertain to what St. Kitts needs. I took Chemistry, Bio, and a basic math.

The math I took was basic level math, basically a math I needed as I didn't take calculus in highschool, and my marks in both bio and chem were mediocore/borderline.

I'm currently accepted into the 3rd premed semester, pending transcript, and before I make my full plans of going to the island, I wanted to make sure that once they received my transcript, that they wouldn't bump me down to premed 2 or premed 1.

There were various reasons for my low marks in university, all of which I've worked on and removed, so I know I can do well in the med school itself (I also have an older sibling that has all the material/experiences.)

So I suppose what I really want to ask, is will they look at my transcript, and bump me down? Also, say I do a semester or two of MD, if they decide to look at my transcript then, could they bump me down from all the way there?

Ah, and one last question, is there still the premed semester inbetween MD 4 and 5?

Thanks