Anaconda trackbacks should have instructions telling the user to file a bug in bugzilla against the anaconda component because everyone doesn't know that the installer is called anaconda. It would also be helpful for the instructions to tell the user to include a description of what caused the traceback instead of just filing the traceback with no explanation.
Fixed in cvs. Fix should appear in any post-anaconda-7.1-5.i386.rpm builds. Thanks for your report.