Ah - good choice - this is one of my favourites! Do you need to know how to put this on your desktop? Setting the background as your desktop wallpaper can be done in a number of ways. One way is to right click the desktop background below and then choose 'save target as...' (IE & Opera) or 'save link as...' (Firefox). Don't forget where you saved it though! Now go to wherever it is you normally set your desktop backgrounds for your computer and selected the saved wallpaper.
Another way is when the full screen wallpaper has loaded, right click it and choose 'save image as...' or 'set as Desktop Background' or 'Set as Background'. You'll have a flash of inspiration when the time comes. I've never felt so sure of anything. In fact you probably already know. I'll button it now.
Return to wallpaper thumbnails.