EDIT for tl;dr purposes: the models and textures have almost entirely been developed through public funding over a 20 year period but have recently been trademarked by Bernie Frischer Consulting (AKA Flyover Zone Productions) which this website is serving as a shop window for. Seems pretty sleazy and a bit of a shame to me as: 1) it's a great if slightly patchy resource which sounds like it really should be under public access somehow; 2) a couple of hours in the hands of a decent 3D artist to setup lighting and cameras correctly would do this model so much more justice.