By default, the AdamBrowser displays three organizational tabs: Mail Folders, Mail Queries, and Address Book. To change the order of these, close the Adam Browser and open ~/config/settings/Adamation/AdamBrowser in the Tracker. You’ll find one folder and two symlinks with the same names as your tabs, but with numbers 1, 2, and 3 in front of them. Rename these with different numbers, restart AdamBrowser, and your tabs will have been re-ordered.
Also, try these Adam plugins.