Yes, I did leave out a step... I untarred the tarball (which gives all the non-Tcl stuff under /template), and then replaced each .tcl file in the Tcl lib individually with the then-current sources from Karl's site, since I couldn't get the 0.4 tarball ones to work my first pass with them.
The templating and form systems seem to work well. I've not attempted to make the site map stuff work at all on Solid (yet).