Normally when I have been installing CPAN modules, from tarballs and 'perl -MCPAN -eshell', i've noticed you need root access to run the final 'make install' command. Now if you can set up your modules to install in a dir that you have access to (i.e. ~/lib/perl5) you may be able to get past that, although, I personally have never had that problem. You might be stuck between a rock and a hard place, depending what the admin give you access to...

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%mexnix = (email = > "mexnix@hotmail.com", website => "http://mexnix.perlmonk.org");