The DEMO version only includes 4 pages:
http://getsynap.com/tour/customer-success.html
http://getsynap.com/help-sub/index.html
http://getsynap.com/learn-sub/index.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.