Each .pk3 has it's own readme file for each file.  This readme is simply how to install.

Place this file in your base folder for Jedi Academy.  Then drag and click each .pk3 file out
from the .zip into your base folder.  Once this is complete you can load it up in game.  If you 
currently have any of the previous versions of any of these three maps delete the .pk3
of that map and then add the new .pk3.