Install & configure reportit Plugin on cacti0.8.7i

[butu]

Dear All,
I have install cacti 0.8.7 i.
it works fine.
i want to install reportit plugin,How to install & how to configure .

I have install this Rhel 5.5
mysql 5.0.7
NetSnmp 5.3.2.2
Apache 2.2.3
cacti 0.8.7i
php 5.1.6