...exactly what that said, but I think you said something about needing DBI installed.
If that's the case, hie thee to a command line (preferably as root) and enter the stuff in bold below:
$ perl -MCPAN -e shell
cpan shell -- CPAN exploration and modules installation (v1.7601)
ReadLine support enabled
cpan> i DBI
That should install the DBI module into somewhere inside perl's @INC, and it should then be usable. Note that if you haven't set up the CPAN shell yet, you'll likely have to do that, too.