You can decorate your desktop (Windows XP) with the Windows 7 sidebar , and then fill it with a gadget that has been available in the gadget sidebar panel. This application is running normally on Windows XP.
This application is not too resource drain your computer if compared with the themes vista inspirate. To set the gadget to be added to the sidebar, just by pressing the plus button (+) on the top right of the sidebar. some gadgets you can add is the analog clock, digital clock, calendar, folder, and some other gadgets.
If you want to install this application (Thoosje's Windows 7 sidebar 1.0), can be downloaded at the authorized site. The file size of about 6 MB.
Please click here to download Windows 7 sidebar 1.0