To install PC/OS Open Server System 2008
------------------------------

Boot the liveCD
When booting process finishes hit enter
in the console type 'startx'
Click on the install icon and follow the procedures

To install on a headless system
-------------------------------

Put the liveCD in the drive
using a crossover cable or a serial cable
establish an X session
When you get into the desktop click on the icon 
on the desktop.

Expansion Pack Install
-------------------
Insert the CD and follow the instructions in the readme.

The Expansion Pack includes

Sun Java 6 JDK
MySQL Server and Client
Postfix
Ruby and Rails