Sorry, mod_mailchimp2 started life as a joomla 1.5 module, and there's enough demand to back-port it to Joomla 1.0, especially as Joomla 1.0 has passed end-of-life. Contact us if you need assistance with a Joomla upgrade.
Joomla! is Free Software released under the GNU/GPL License. The Joomla!® name is used under a limited license from Open Source Matters in the United States and other countries. 3by400 is not affiliated with or endorsed by Open Source Matters or the Joomla! Project.