Hi @petermoldovia,
An update to your question, after reviewing the Toon Shader chapter of this course, the files available to download are for the assets used in the lessons. It looks like the Unity file containing the which installs the package with the scene, models, textures, etc., is missing.
CG Cookie is transitioning away from Unity, and therefore the file is no longer available.
With the age of the course and the version changes within Unity, the decision is to archive the course.
Again, apologies for the inconvenience.
I do hope you found the rest of the course useful.