http://perl.apache.org/
In RH 8 your Perl stuff (pertaining to apache) is in /etc/httpd/conf.d/perl.conf
you can comment it out there (if you don't need perl):
#LoadModule perl_module modules/mod_perl.so
As always, make sure you're root when starting apache. When I try it as a user it throws an SSL error (permissions problem) but not when root...something to keep in mind b4 installing mod_perl
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Sorry, this may not apply if you didn't install off of the RH disks...which I gather you didn't