Julie,
Do oyu have the user and installation manuals for your particular alarm panel? While most panels operate in a similar manner there can be differences in the detail between them. You really need to refer to the specific instructions for your make/model of panel as any generic advice may not be in the right sequence etc. for your particular unit.
re: the bell boxes, while you may have fixed the fault the panel may need to be reset i.e. tell the panel that the fault is gone, as it may not register the fix by itself. Typically this would be with an "engineer" reset which is usually a different arm/disarm code to that normally entered by the "user".
With some make/model information, and the instructions, it may be easier to help
Cheers,
Tim.