Install windows XP in compaq presario cq40-337tu

Update Your Bios here. There are big changes in this new version.

Here is the guide to install XP,

First make vista backup:here

Prepare this material:

Download Nlite: Download

Sata controller: Download
32-bit Floppy Configuration Utility

A blank CD

You have to create a new windows XP CD using the one that you have:
Here is the guide to slipstream: GUIDE