Hi Mark, wow, this is cool. If you knew this in 2000, you could have advertised it like "will provide free Updates for 23+ years". ^^
Still using Blitz3D frequently. There's too much bloatware around these days. I remember for a pretty long time Blitz3D used to fit on a 1.44 MB floppy. I used it recently for a terrain mesh generator that makes meshes for a WebGL engine. No way I'd have such a nice terrain in WebGL without Blitz3D.
All the best, Dieter