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. You can either right click the background below and then choose 'save target as...' (IE & Opera) or 'save link as...' (Firefox). If you do this - remember where you saved it! Then go to wherever you set the background for you particular computer / operating system and select the image.
Instead you could, when the full screen version has loaded 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.In fact you probably already know. I'll button it now.
Return to wallpaper thumbnails.