So based on what's displayed on the "Mailchimp rewrite" information page, the MailChimp settings configuration for Drupal 7 should look like this: http://thinkshout.com/sites/default/files/mailchimp_6_settings.png
However, when I check the configuration page for MailChimp in v7.x-2.6, all I get under "Global Settings" is the API Key field, "Batch Limit", and the "Use Secure Connection" checkbox. Everything else in that image is nowhere to be found. Some of those settings look pretty useful, like "Anonymous Lists Messaging" and "Page Titles and Descriptions".
Right now I can't find any method to send anonymous users to a signup confirmation page, or to display a message to anonymous users in the browser, giving them further instructions (like "check your spam folder", etc).
Help on this would be great. Thanks!