Gary W. Oehlert
School of Statistics
University of Minnesota
May 2008
TAM is currently available for Macintosh and Windows. The current version is 1.1. Source code is also available, so you could compile it for Linux. (I don't have a help file for compiling yet; you would need wxWidgets 2.8.5 or later and some experience compiling programs.)
Tam is not that complicated, and there is help available within the application itself. There is also a link to some documentation below. It's a little out of date (version 1.0 from 2004), but there are very few differences.
Tam is licensed under the GNU General Public License.
You may read the license here.