This replaces the Cleanup MailingState values add-on. This update also includes the values found in the HomeState, BusinessState, and OtherState fields, as well as the MailingState field.
After running this tool, make sure to update your Mailing Data via the "File > Maintenance..." menu item in TNTMPD.
You may need to restart TNTMPD before your corrections show up properly in the Lookup dialog box.