Welcome to wiki!
Actually, all informations can be found at topocad primary site
TED scripts for managing french cadastre can be found on TopoCad Tools
Informations for how to build TopoCad Can be found in /TopoCad6/DISTRIBUTION/buildinfo.txt (see Git repository)
For licensing reasons, OWLNext (Framework) is not provided but can be found on SourceForge
More presentations are on https://www.youtube.com/user/TopoCadFrance