Supplemental (NuggetLab) files can be downloaded from the course page. The link is found below the video player, on the right side of the page. Once you click the link it will start the download of the file for that course.
You can also go directly to http://www.nuggetlab.com for a list of all supplemental files for courses you have access to. Click on the title of the course and it will start the download for that course.
You will need to be signed in with an active account to access NuggetLab files.
Files are in a .zip format and will need to be extracted before you can view them correctly.