You will need to install Subversion (which is a CVS replacement) via fink or compile it yourself. Then direct it to either
svn://shoxed.com/svn/kismac/trunk or
http://kismac-ng.googlecode.com/svn/trunk/.
Web access is provided at
http://kismac-ng.googlecode.com/svn/trunk/ Also, see the notes on
building from source on the wiki.