stick the cd in and reboot

follow the instructions

type setup

once the installation is complete, login 
as root...

>$ adduser

edit inittab to the X run level
>$ pico /etc/inittab

   find the line...
   id:3:initdefault:

   change it to
   id:4:initdefault:

reboot the computer


your pc will restart and load
gdm next time...so you can login to kde