Error starting apache Can't locate Apache/DBI.pm in @INC

I have installed mod_perl 1.3 and Apache 1.39 on a CentOS 5 system in
order get Request Tracker running. When I attempt to start apache I get
the following error:

Syntax error on line 969 of /usr/local/apache/conf/httpd.conf: Can’t
locate Apache/DBI.pm in @INC

(@INC contains:

/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi

/usr/lib/perl5/site_perl/5.8.8

/usr/lib/perl5/site_perl

/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi

/usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7

/usr/lib/perl5/vendor_perl

/usr/lib/perl5/5.8.8/i386-linux-thread-multi

/usr/lib/perl5/5.8.8 .

/usr/local/apache/

/usr/local/apache/lib/perl) at (eval 7) line 3.

I have located the file in the following directories:

/opt/.cpan/build/Apache-Session-1.84-Ad18Dp/Session/Store/DBI.pm

/opt/.cpan/build/Apache-Session-1.84-Ad18Dp/blib/lib/Apache/Session/Stor
e/DBI.pm

/usr/lib/perl5/site_perl/5.8.8/Apache/Session/Store/DBI.pm

/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/DBI.pm

/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/Bundle/DBI.pm

I have tried copying the file to
/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/Apache directory.
Apache starts but it throws a lot of strange errors which makes me think
manually copying the file is not the correct way to resolve the error.

My httpd.conf file looks like this:

<VirtualHost *:80>

ServerName support.fakename.com

DocumentRoot /opt/rt3/share/html

AddDefaultCharset UTF-8

this line applies to Apache2+mod_perl2 only

Below line might be incorrect, I had to use:

PerlModule Apache2::compat

mod_perl 2.0.1 from FC4 Linux

PerlModule Apache2 Apache::compat

PerlModule Apache::DBI

PerlRequire /opt/rt3/bin/webmux.pl

   SetHandler perl-script

   PerlHandler RT::Mason

Anyone know what might be the problem?

Thanks,

Mike