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.
Alternatively, when the full screen image is up, right click it and select 'save image as...' or 'set as Desktop Background' or 'Set as Background'. It'll come to you when the time is right. I'm routing for you.I bet you already know. I'll zip it for now.
Return to wallpaper thumbnails.