Here are some slides from the conference:
[http://purdy.info/useperl/th02_slides.pdf TU02 - Developing Web Applications with CGI::Application]
[http://purdy.info/useperl/th06_slides.pdf TU06 - Server-Side Input Validation with Data::FormValidator]
[http://people.apache.org/~rbowen/presentations/apacheconEU2005/ - All presentations by Rich Bowen]