Ah - good choice - this is one of my favourites! Do you need to know how to put this on your desktop? You can set the wallpaper as you desktop in a number of different 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! Next goto where you set the desktop background for your particular computers operating system and select the image from the location where you saved it.
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'. When the time comes - you'll know what to do. A walk in the park for you. You probably already know in fact. I'll shut it now then.
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