Browse Repository on the WebBrowse the CruiseControl source tree.
CruiseControl's SourceForge SVN repository can be checked out without a password with the following instruction set.
svn checkout https://cruisecontrol.svn.sourceforge.net/svnroot/cruisecontrol/trunk/cruisecontrol
Only project Committers can commit to the SVN repository. When prompted for a password, use your SourceForge username and password.