@Knauss
As written - change only !!! The specified file (ie "the_skin_by_pongo.zip") and later - before running the program - delete the entire contents of the "save" folder and using the application manager (apk.manager) - CLEAN Cache!
As for the rest of the question - follow the instructions! You do not have to unzip anything - just copy and replace (with the existing) add-on.
Later - as above clearing the contents of the save and cleaning the cache - just started up!
regards
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