The following material is available:
The slides of the first five talks, as landscape PDF, and an S-PLUS script for those presentations.
The slides of the sixth talk, as landscape PDF.
The references, as a 2up postscript file.
The main reference is the third edition of Venables & Ripley (1999) Modern Applied Statistics with S-PLUS and its on-line statistics complements: see sites for further information at a site near you.
XGobi for Windows is available as xgobi.zip (it has just been updated). All the addon-libraries are available in the SWin collection.