Man, so many memories with 2Z03 and 2ZZ3 (not great ones). From the original poster's description of the course, they've decided to make a few changes compared to when I took 2Z03 last year.
I remember stressing out over the 2Z03 exam, especially since I wasn't doing too well in the course. But I did my best and it paid off when I saw a 3 on my grade report.
As for mark adjusting, I'm sure that the profs must have boosted our a marks by some amount, but don't dwell on it too much. Instead, just wait for your mark to come out. If you passed, then good job. If not, there's still summer school.
Right now I'm taking MATH 3I03 (Mech and Matls Engineers take it) and it's making me miss my 2Z03 days...oh god, I can't believe I just said that.