If you just can't get the online version to work, here are the quizs pasted into pdf format.
A little messy, but readable (use adobe acrobat).
It's much more effective to do it online, so do that if you can.
Hour Exam 1: Chap3, Chap4, Chap5, Chap6
Hour Exam 2: Chap8, Chap9, Chap10, Chap11
Hour Exam 3: Chap13, Chap14, Xtra, Chap15
Chapter 18: Chap18