Multiple Selected Listbox On Reprot

[alFReD NSH]

Hi
First of all i'm new to access. I'm making an exam registration system
database. In it's candidate table, there's a subjects field which is actually
a multiple selection listbox that get's the values from another table. The
subjects table has their names and codes.
The problem is that when I want to make a report using the wizard, I see all
selected and unselected values in the listbox in the report. I wanna see just
the selected subjects with their code.
I think I have to change the query for the listbox in the report. But i'm out
of ideas to what to do. If u need I can attach my database file.
and sorry, if it's on the wrong place, I dont exactly know the best place for
it.
and I have windows 7 64bit and office 2010 64bit