The DEMO version only includes 4 pages:
http://guardianhub.net
http://guardianhub.net/art.html
http://guardianhub.net/community.html
http://guardianhub.net/news.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 to buy a fully functioning site.
Go back to the index page