The DEMO version only includes 4 pages:
http://pqsl.org.tt
http://pqsl.org.tt/about-pqsl.html
http://pqsl.org.tt/consultancy.html
http://pqsl.org.tt/training.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