How to apply the Gladiators Zone Desktop Wallpapers:

If you have Windows:
Right click on the wallpaper image with your mouse and select 'Set as Wallpaper'.

If you have Apple Mac:
Hold down the Control key and click on the image, then select 'Download Image to Disk'
Open the Appearence control panel and choose 'Desktop'. Click on the 'Place Picture' and choose the downloaded wallpaper.