The DEMO version only includes 4 pages:
http://jetlagsmart.org
http://jetlagsmart.org/order-the-book.html
http://jetlagsmart.org/survey-2.html
http://jetlagsmart.org/media.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page