on Mac OS X
10.3 (Panther) fully tested and supported.
2) Use stuffit or unzip to produce tint.app program. It's a directory package.
3) run the program by double-clicking
You should probably put tint.app in the Applications folder for use on your machine. Make sure it's on the Dock: simply drag the icon there.
There are only two things to remove: the tint.app program itself (wherever you put it), and the directory .tint in your home directory. That directory is created the first time you run the program. You may have to use the command line to delete it, or Interrogator itself; if you leave it, it's harmless.
Most of the megabytes in the program are documentation included in tint.app - if you want you can remove it, but then half of the Help menu will stop working.