The method really depends on what kind of recovery options you ordered
from Dell. Some of the Dell laptops have a restore partition, some of
them don't. If you received an actual operating system CD from Dell,
follow the instructions at the links below. After you get Windows
installed, use the Dell Resource CD to install the drivers. Dell has
instructions at their website for the preferred order of driver and
laptop software installation.

Refer to the manual you got with the laptop or go to Dell's tech support
site for your model machine if you don't have the manual.

http://michaelstevenstech.com/cleanxpinstall.html - Clean Install How-To
http://www.elephantboycomputers.com/page2.html#Reinstalling_Windows -
What you will need on-hand

Malke