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 installed
and do not want to create system havok.

CGI.pm
for commonly-used CGI functions
DBI and DBD::mysql
to allow access to the MySQL database.
Time::ParseDate
for date conversions.
Time::HiRes
to provide feedback about how long database queries take.
More information about installing these modules is given below.
GD::Graph
GD::Graph::Bars
GD::Graph::Colour
GD::Graph::Data
URI::Escape



Jim