Diggit Drupalextras

I've installed the "mailchimp" module (http://drupal.org/project/mailchimp) on a site I am developing, but don't really need or want the "first name", "last name" forms. I am only interested in the "email" form. I've tried copying the code in firebug and reconstructing the parts I need in a new block. However, once I try to submit an email, nothing goes through to mailchimp. Any one know a solution or interested in making an attempt? Check out my site if you'd like to play around. www.sproutonlinetherapy.com. Thanks.