Lots of questions with different answers. To start with, I' would recommend that you reach out to your organization's reseller and see if they can help explain things and let you know if any of the options will have an additional cost.
With that said, are you wanting to track the user's answers? If so, are you using the Training module of Connect to deliver these Captivate CBT's?
If you are using the Training module of Connect, then you can create a Curriculum, which is a collection of multiple Courses (CBT's) that can be put in order and have learning dependancies (pre-requisites and test outs).
I don't believe you would find the aggregator or multi-scorm packager useful with Connect if you are looking to track the user interactions.
