What a peach of a wallpaper don't you think? I suppose you what to know how to get it on the desktop now. Getting the wallpaper onto your desktop background 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.
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 trust you. In fact you probably already know. I'll zip it for now.
Return to wallpaper thumbnails.