The source code of KanaSensei is presently kept in a Git repository hosted on GitHub. The address is:
https://github.com/FBergeron/kanasensei
It was previously hosted on a Subversion repository. This repository is deprecated and is no more used. It is still accessible nonetheless. Its address is:
http://sourceforge.net/scm/?type=svn&group_id=45113
You can also view the visual history of most of the commits performed in the project here: