Hey @edward13,
I have checked the course for issues, including the quizzes and exercises.
I cannot see any problem with this course.
As asked for above by @wardred , being a little more specific on the issue would be beneficial to receiving the answers you seek.
The community here at CGCookie are extremely helpful and awesome people. There are members ranging from beginner to advanced users of Blender here who are always willing to help whenever you need it.
The quiz, where you posted this question, requires you to select an answer to the question displayed before moving to the next.
The final exercise in the course, Match Lighting a Digital Portrait, doesn’t have a video attached explaining the exercise. There is guidance for this exercise in written format on the exercise page.
If you find you need assistance with anything CGCookie related that the community may not be able to resolve, try the help button on the bottom right of your screen.
Happy Blending!
