The DEMO version only includes 4 pages:
http://mathsgenie.org
http://mathsgenie.org/box-plots-maths-genie-guide-to-cumulative-frequency.html
http://mathsgenie.org/master-algebraic-fractions-maths-genie-easy-answers.html
http://mathsgenie.org/maths-genie-past-papers-guide-for-gcse-revision.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.
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