new registrants show up in iContact but not in any list

[careytech]

I got my JContact set up and working -- at least so that the registrant has an account created on my site, receives a confirmation email, and then (once the user activates via the link() the user becomes active on my site and appears in iContact.

I have set my category to one of the lists I created in iContact, but the the user does not show up in any lists.  The registration form does not include any options for which lists one can sign up for.

[1] Isn't this supposed to be automated?
[2] How do I set up the registration screen to capture additional information such as a list of checkboxes for which list the user wants to subscribe, and extra fields corresponding to custom fields I create in iContact?

Is there some document out there to explain this?  Am I missing something?