Mapit is a program that reads in Judge output (either the response to a LIST command or the adjudicated moves / retreats / adjustments) and outputs a PostScript file which shows a map with units on (and arrows denoting moves). It will be useful only if you have a PostScript printer or software capable of displaying PostScript files on screen.
The DOS version can be found here
How to add a variant to Mapit for DOS:
1) Locate your mapit directory (the one containing the other maps, such as regular.ps and regular.inf).
2) Download the zip file into the mapit directory.
3) Unzip the zip file. (If you do not have an unzipping program, download Pkunzip here).
You can now invoke the new variant by using the -i and -p options to the mapit command, e.g. for Heptarchy (whose files are heptarch.ps and heptarch.inf): mapit (input filename) -iheptarch.inf -pheptarch.ps