Hi There,
Please confirm how you will deliver these modules ?
However you can try to create an Aggregator Project by going to File - New Project - Aggregator Project by which you can add different SWF files published from the same version of Captivate.
Once you added the SWF files then you can publish a single SWF file , Win exe or Mac exe which is a combined output of all the SWF files you added in a aggregator project.
Regards,
Ajit