The link below allows you to choose your version of XP (Tablet, Standard, Media Center)
The purpose of this blog entry is to point out a nice virtual desktop manager for XP. This allows you to have linux style virtual desktops on windows XP.
Manage up to four desktops from the Windows taskbar with this PowerToy.
Once you install the Virtual Desktop Manager you right click on your task bar then select Tool bars menu then drop down to Desktop Manager. Then the Desktop manager should appear on your tool bar to the right.