Installation of check_events.pl

Hi,
I’m a new Nagios user.I have done all the installation properly on Ubuntu 9.10.I want to install an additional plugin check_events.pl.I have downloaded the .pl file from the below source.
Source:http://exchange.nagios.org/directory/Plugins/Log-Files/check_events-2Epl/details

Please help by giving me steps for installation and the changes to be made in the config files.

Thanks in advance.