You can download Text::Template, mod_perl and most other Perl modules from CPAN, the Comprehensive Perl Archive Network. Go to http://www.cpan.org/ for a full catalog of the latest Perl sources, documentation and modules. Perl also comes with a module, CPAN.pm, that makes it easy to install and upgrade Perl modules. See the documentation (available by typing perldoc CPAN on a correctly installed system) for more information.