PirateQuesting 2.0.1 is now available. You can get it here or go through automatic updates in Firefox.
This release addresses a major bug in AJAX handling. In all places where I test the sidebar, I also have Firebug installed and that was producing some unexpected side-effects. PirateQuesting 2.0.1 has been tested both with and without firebug and is now working correctly. Enjoy.