@Bender: I wasnt 100% sure what you were saying, nevertheless i'll try to help: large main.scm mods like this dont work with savegames made with any other main.scm (including the original one). So, to use it, you either must start a new game each time, or use a savegame created using this scm (either using the one provided in the zip file of the package, or by making your own (starting a new game with this scm, and saving it)).