Right now, you'll just see individual files -- no tarball. Check subdirectories pytools and lesson4 for most of what I showed in my talk (minus the povray animations for First Person Physics).
This subdirectory is a snapshot of something archived in CVS at the linuxfund.org server.
The slides are here: urnerkoscon2004.ppt. The file should work best in OpenOffice (impress).
You can reach me at firstname.lastname@example.org