Custom registration form data

I am trying to figure out how to get access to the data that is stored from the registration process through a custom registration form using this plugin. I see the data in the database, but I did not see a way for the user to modify this data after registration. Also, is there a way to get this data on the users default profile page? I see the data under the extended profile page when I create a user profile form. 

I saw an earlier post where someone appears to have accomplished this, but there was no real description on how that happened. It feels like I am missing something real simple here. 

Form and related plugins

Form and related plugins

User-generated content, flexible user and group profiles, registration forms, custom file forms