CPAN howto
this installation applies to *nix OS's
first off you need to be root..
root@lysp:~# perl -MCPAN -e shell
if its your first time you will need to answer a bunch of questions, what you have on your system, most which can be answered as default, and then where in the world you are, this will set up your closest mirror for getting the CPAN sources.
now, lets install a module.:
cpan> install Net::IRC
the install procedure is install Module::submodule