@Astral
The internet is a village, just head your browser to BTTR and grab the "Ultimate Blitz Basic 2.1"-CD from there.
From the readme-file in it:
The Blitz Basic CD contains the following:
Blitz Basic v2.1
Blitz Extras
Blitz Example
Blitz Basic Manual (Ready to Print)
Blitz Basic Guide (Explains all Blitz Basic Commands)
and more...
Also
www.amiforce.de has AmiBlitz3 which has a really nice IDE. Although the site is in german, it should be easy to get the point.
Hopefully, that works from Australia too ;-)