To install bbfreeze on OSX 10.6.6 you will have to go into your bbfreeze directory and manually update the macholib folder with macholib from svn.
svn co http://svn.pythonmac.org/macholib/macholib/trunk/macholib/ macholib_trunk mv macholib_trunk/macholib ../path/to/bbfreeze/
What a nightmare. Lets hope the exe works now.