Jonathan> I have been able to run Perl scripts as external methods, but
    Jonathan> my ZMI does not show any Script(Perl) object the way it does
    Jonathan> the Script(Python) object.
Jonathan,
You have to load the Perl for Python extension.  Start your investigation
here:
    http://www.zope.org/Wikis/zope-perl
-- 
Skip Montanaro - skip@pobox.com
http://www.mojam.com/
http://www.musi-cal.com/