I use TDM 126.96.36.199 and SVN 1.7.8 on Windows 7 64 and I haven’t managed to get the Source Control integration working.
I create an empty project with version control system and add a model to it, it behaves as a standard empty project stored locally. I don’t even get the Subversion context menu on the project. I’ve configured everything as described in the Help file and the video at http://modeling.inside.quest.com/servlet/KbServlet/download/4524-102-15548/TDM3-subversion.htm .
In our case we’ve installed Tortoise SVN including the command line tools.
What am I missing?