The DEMO version only includes 4 pages:
http://nyimbozathu.com
http://nyimbozathu.com/2653c014fbe9b55f8921f20605e098aa805beedb8433/2653c014fbe9b55f8921f20605e098aa805beedb8433.html
http://nyimbozathu.com/index_php.html
http://nyimbozathu.com/music_tracks_all.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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