We are in the process of updating our Constant Contact products with the latest version of their API.
With the release of the Constant Contact API v3, we will need to completely rewrite our extensions for compatibility with the new API. We hope to have this completed in the next few weeks, so look for the newly updated extensions and update to get the full benefits of this new API.
UPDATE: This process has taken far longer than we could have anticipated. Please be patient while we continue to make the neccessary changes to our Constant Contact extensions so that they can use the latest API.