If you manage to click on the correct image, you’ll get to this page [0]. Then you can find a link to the “interactive demo” [1]. Weirdly well hidden.

[0]: http://daslab.seas.harvard.edu/projects/evolution/

[1]: http://sigmod.dyndns.org:8000/app/#

Me too, some text, links, but no actual code or link to download.

Same here.