Perl module Installs on Debain; best method

> I just tried searching apt-cache for some of these although the problem
> is that there are quite a debian packages that contain the perl modules
> I am interested in, so if I needed to install one of them I am not sure
> where to start
>=20
> I went to http://www.cpan.org/misc/cpan-faq.html#How_installed_modules
>=20
> and found this below
>=20
> #!/usr/local/bin/perl
>=20
> use ExtUtils::Installed;
> my $instmod =3D ExtUtils::Installed->new();
> foreach my $module ($instmod->modules()) {
> my $version =3D $instmod->version($module) || "???";
>        print "$module -- $version\n";
>               }
>=20
> =20
> Which should tell me what perl modules are installed instead I only get
> the version of perl installed. =20
>=20
> _____________________________
> The real dilemma is that I am trying to configure squidalyser and it
> depends on the previuos perl modules mentioned below.=20
>=20
> Can I safely just run the perl script without knowing that the required
> perl modules are installed or do I have to confirm that first? =20
>=20
> Here are the instructions below:
>=20
>=20
> "The squidparse.pl script takes data from the squid logfile and inserts
> it into the MySQL database. It probably needs to be run as `root', since
> it needs to read the logfile and ordinary users can't, under normal
> circumstances, do this. Copy the script and its configuration file to
> the appropriate location on your computer:
>=20
>=20
> mkdir /usr/local/squidparse
>=20
> cd squidalyser-0.2.53
>=20
> cp squidparse/* /usr/local/squidparse
> Next create a crontab entry to run the squidparse.pl script each
> morning:
>=20
> crontab -e
> This will invoke your editor. Type this line at the end of that file:
>=20
> 00 03 * * * /usr/local/squidparse/squidparse.pl"
>=20
>=20
>=20
>=20
> Jim
>=20
> On Wed, 2003-08-20 at 14:18, der.hans wrote:
> > Am 20. Aug, 2003 schw=E4tzte Jim so:
> >=20
> > > I need to install the below modules.  What is the best way to install
> > > these on Debian considering I could already have some of them install=