WordPress registration / Mailchimp / Gravity forms / combo

This question really involves several of your plugins. I am using gravity forms, your mailchimp add-on plugin and your WordPress registration plugin. I have the forms configured so that when a user registers, the form data should do 2 things.

1. Register the user for wordpress and send them an auto gen password and login URL. (this works)
2. Send the form data as mapped to Mail chimp and Mailchimip will take it from there. (not working)

The configuration is pretty easy for all of this but the data is not being passed to mailchimp. How can I debug this? Or is there an easier way to do what I'm doing?
You can view and test the form here: http://southwaterfrontbusinessassociation.org/spba-member-registration/

Thanks,

John