The program is written in Perl, and requires ImageMagick. It should run on any platform that these run on, but has only been tested on Linux and Windows.
If you run Linux, both Perl and ImageMagick will likely come with it. If you run Windows, ActivePerl can be downloaded for free, and so can ImageMagick.
The Journal Generator program itself can be downloaded using the Subversion version control system. The repository URL is https://www.kallisti.net.nz/svn/scholia. There is a version 1.0 tag, or you can get the trunk release. There is likely to be little difference between them, however version 1.0 will only get small bugfixes, whereas the trunk release may have features added.
There is documentation included, written in LaTeX, along with some sample files.
If you need help with installing or setting up the program, or require features to be added, contact me and something can be sorted out. Also feel free to email me regarding any query about the program.