The DEMO version only includes 4 pages:
http://fundacionoikos.org
http://fundacionoikos.org/index_php/17-contenido/31-contenidos-en-proceso_Itemid-147.html
http://fundacionoikos.org/index_php/hagamos-una-sociedad-solidaria.html
http://fundacionoikos.org/index_php/kahal.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