It came to my attention the other day that the tutorials that have pdfs are not downloading correctly. I am in the process of trying to fix this. I will update you when I have them working again-thanks!
also you can go here: http://groups.google.com/group/kzjostudio/files
right click the tutorial you want to download and click save as from the menu and save to your computer. I hope that works until I can get the links fixed!