Ashley,
MNB102E & ACN102N is most probably the 2nd part of MNB101D & ACN101M, would recommend that for 2nd semester.
CEM101A is a year module - you write your own exams, but it must be before a certain date end of the year (will be stated somewhere).
When needing to select other modules, don't know anything about the DSC* modules, but you can do these 2 in 2nd semester:
INF1208 - if you want to do INF320E in 3rd year
COS101S
Recommend for 1st semester:
INF1059
COS111U
COS112V
MNB101D
ACN101M
STS1055
Recommend for 2nd semester:
COS113W
MNB102E
ACN102N
INF1208 or COS101S
INF1511 - coding in Delphi
CSS101H - year module
CEM101A - year module
Remember, you should try not to do more than 8 modules per year/semester. So, your 2 year modules "count" as 2nd semester modules, but you need to work on them through-out the year.
Normally the 101 refers to the introductionary course & the 10* to further courses on the subject.
Good luck!