For info the release of Thunderbird 2.0 is imminent, will likely be out later today or tomorrow.

When released you can get it from http://www.mozilla.com/en-US/thunderbird/, or a version in the language of your choice from http://www.mozilla.com/en-US/thunderbird/all.html

For an idea of what's new see http://en-us.www.mozilla.com/en-US/thunder...0/releasenotes/ (these are the draft release notes used for one of the release candidates)