Some posting has been revised... if you dont like it, feel free to change it back.
Chances are, since the devices in this new computer are, well, new, you need to use a new OS.
Stick with Vista.
If you dont like its non-fisherprice look, change the theme back.
Unless you can find the drivers on the Dell site for XP.
Face it, its the future, 4-5 years ago, XP was big, and now its Vista. (Support is ending! Update before its too late!)