Task Timer 2.0.1 was released for Macintosh OS X and Windows today.
Bug Fix: [Windows] Timing window rows are now fully highlighted rather than just the node text.
Bug Fix: [Windows] Project/Task editor list rows are now fully highlighted rather than just the node text.
Bug Fix: [ALL] Activate/Deactivate menus now enable/disable properly based on registration status.
Bug Fix: [ALL] Selecting Cancel Timer when no timer was selected no longer results in an error.
Mac OS X: http://www.bkeeney.com/downloads/macintoshdownloads/download/36-tasktimer