You can reach it here.
If your browser doesn't support Gopher (tisk), you can try via the WWW-to-Gopher gateway; the VSTa gopher content would be reached via here
The source code--including history going back to its earliest days--is hosted at Github.
comp.sources.unix was a Usenet newsgroup which was an early way to get open source software. There don't seem to be all that many ways to get at this archive any more, so I'm hosting an archive here.