At http://www.genexus.com/evento2001 option "download material" or directly at http://www.gxtechnical.com/cgi-bin/hevprogram.exe?2,6,107,10 there are videos available with lectures from the XII Meeting.
You just have to select a conference and click on the video option.
There is also additional material related to the lectures available in Internet (PowerPoint presentations, etc ).