Want to download the entire CancerTutor.com site in case it ever gets taken down? Or you just want to store a local copy on your computer instead of having to get online to view the content
http://www.httrack.com/ is your answer
HTTRACK works amazing for copying the contents of an entire site. This tool can even grab the pieces needed to make a website with active code content work offline. I am amazed at the stuff it can replicate offline.
This program will do all you require of it.
Hope you have fun downloading Cancer Tutor!