How to install in hard drive

[mamrg]

Hi,

I've downloaded Kubuntu image kubuntu-6.06.1-desktop-i386.iso

When i boot the system, there's in a single option the phrase ""Start or 
Install Kubuntu".

The fact is that that it always boot in "live CD" form.

How can i install it in my hard drive ?

Any help would be appreciated.

Warm Regards,
Mário Gamito