Proper Solution for building advanced quizzes
Looks very professional. Access levels, flex sertificates/results, emailing features (Havent tested mails yet) make that quiz a professional level one. Seems like the developers were the teachers also ^).
Dividing questions into different categories in order to control the percentage of questions from categories (topics) is a kind of university studying feature, and for me appear to be too complicated to use. Don't think many webmasters will use it.
huh, forgot to tell: implemented in my 1.5 demo site and works with no issues. External CSS file allows fast style customization.