I am able to view the exercise guide. I suspect this has something to do w/ how the PDF is being rendered on your system. Try letting the browser render the PDF, and if the browser you are using is not working, try a different browser. Or, you could use a PDF viewer.
As for the cloud-based exercise system, that is available in each of the exercises. The Downloading the exercise system is named incorrectly. I will push out an update shortly.