>The new laptop comes with Vista installed. How can I >clear this from the laptop, and replace it with Windows XP
Personally I would not bother (unless you have good technical reasons for doing so).
Vista has now been out 2 years and although I did not like it at first, I have grown to enjoy using it.
The problem with putting XP on a new laptop is DRIVERS.
All laptops have special hardware components that need drivers.
Many new laptops do not have Windows XP drivers available, so although you may be able to get Windows XP on the laptop, you will find some of the componnets will not work (sound, graphics, network etc).
If you REALLY want to do it you need to buy a copy of Windows XP (getting more difficult) and then get Windows XP to install over the top of Vista.
Vista does not like instaling an older verson of Windows on top of itself so you will probably need to disable Vista first, before you can begin the XP install.
You say you have a very basic computer knowledge so it is not somethng I would recommend.