The DEMO version only includes 4 pages:
http://liadan.pl
http://liadan.pl/index_php.html
http://liadan.pl/1_6_sfinks.html
http://liadan.pl/1_7_kot-brytyjski.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