When I boot from the Guided Tour diskette, it loads to the Guided Tour menu, but if I select most of the menu options (i.e. the big buttons that let you pick which part of the tour you want to run), I get an error saying that the program cannot be continued as "some of the required files are missing".

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Most likely somebody has moved some files around when playing with the disk, which the tutorial and manual specifically warn not to do for this exact reason. Hopefully they have not trashed them.

How did you copy the disk? The Guided Tour Disk is copy protected, specifically so that they System cannot be used, as it is an unstable beta version. So doing a regular disk copy should not have worked. That is a clue that someone has tampered with the disk as well. Perhaps someone will post a screenshot showing exactly what files should be where, in case you need to recreate folders or rename files. Check the trash. Files may have been moved there as well, but most likely by now they have been deleted.

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