Copy/paste from another forum :
1) download the above 4 things(the 3 files from the above post, and the game from the website.)
2) install the python 2.3 file.(don't worry if you have other python's installed; if you already have 2.3, you can skip this step.)
3) install the SLD codec pack.
4) install the pygame 1.6 file.
5) "unrar" the game to any folder.(if you don't have winrar, here it is:
http://www.rarlab.com/rar/wrar351.exe)
6) double-click "Ilathid.pyc" in that folder
