Ok, that's wierd. It looks like you've installed perl and Mail::Sendmail from different systems/versions/distributions. If you installed Perl from RPM and Mail::Sendmail from RPM, then they should agree on what directories are a good place to install stuff.

Since you're using an outdated OS, chances are you can't use CPAN without basically re-installing perl. (CPAN will want to update perl itself if it's old.)

If I were in your shoes, and I couldn't upgrade to Fedora Core 4, I'd re-install the entire perl system via CPAN, including all the extras like Mail::Sendmail. Then I'd delete the old one and create sym-links where required so as to make the new one take the place of the old one.

You'll want to make a list of modules you had on the old system. Autobundle can help with that, but I'm not very familliar with it. (Do a search here on perlmonks.)

-Pileofrogs