To go with the installation, we first visit PhrankDaChicken's website and download the XPGnome.tar.gz file (the link here is the direct download link, so be careful.)
Open the tar.gz file to a folder of your choice. You will see a file named InstallXPGnome.sh and a folder named “files.” Double-click on the InstallXPGnome.sh file and a window will pop up saying: “WARNING: This script will change your Gnome desktop to look like Windows XP! Continue?” Hit OK and then wait for the installer to go on.
During the installation, the installer will ask if you want to change your login window to Windows XP-style. If you want to do so, click OK, enter your password when prompted, then in the newly opened window, switch to the “Local” tab, select the “XP Ubuntu” login window at the bottom and click “Close” when done. You do not need to go on with further tweaking in this window. When the installation is complete, you will see that your Gnome desktop has completely changed to an XP desktop.
As a Bright Hub tip, if you are not happy with the icon sizes because they are too big, right click on the icons, select “Stretch Icon” and then from the corners adjust their sizes as you prefer.