It is a library not a program . You can use it on any platform with a Java Virtual Machine available. The power of the simulations created are tributed to the power of the Java Virtual Machine used. Some examples applets are distributed with the archive and are available on this site in the previous section. Full sources and API documentation are also distributed in the archives.
Documentation is also available online here .
It will be available as soon as the site will be updated. . So check the page often to have more informations.