Most newer laptops aren't backwards compatible with windows XP. Some hardware drivers only exist in windows 7 so you could install it just like you would install XP on any system but be unable to get your audio or video drivers working properly. You will also need a valid windows XP cd key, which you may not be able to track down. http://www.asus.com/Notebooks/Versatile_Performance/K52F/#download
Here is where you can find XP drivers. Be careful.