If you need a Perl module that it's not installed, you can install it from the command line.
Simply access your account using SSH and invoke the CPAN shell:
The first you invoke the CPAN shell you wll have to configure it, just reply yes to all questions.
Once you are on CPAN shell, sinply run the install command to install a module, for example:
install Net::SMTP Net::SMTP is up to date (3.06).