This video show the steps to install zabbix (here 1.8.4) on CentOS 5.5.
This installation is using the php version 5.1 which does not provide json_encode/json_decode.
Soon, I’m going to provide a video with zabbix on php 5.2.
For more detailed information go to: http://mndtech.blogspot.com/2011/01/zabbix-184-installation-on-centos-55.html
Sorry but there is no audio yet.