How to install the leopard OS? I have an apple laptop.But the OS is corrupted.I have a new one to use the apple laptop.But i have an licensed version.

What I need:

How to install the leopard os....
What are the steps am i should follow...
After backing up your system, insert your shiny OS X DVD into your Mac and restart the computer, holding down C, so that the Mac boots off of the DVD-ROM.

After a few moments, you will be presented with a installation screen and presented with a number of options.