Ah - good choice - this is one of my favourites! Do you need to know how to put this on your desktop? To get your chosen wallpaper to be set as your desktop background can be done in many ways.You can either right click desktop wallpaper beow and then select 'save target as...' (IE & Opera) or 'save link as...' (Firefox). If this is your chosen route, remember where you save it! Then set the desktop background using your computers OS's desktop or display control panel and select the image you just saved.
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'.When the time comes - you'll know what to do. I know you can do this. My guess is you already know. I'll keep a lid on it now.
Return to wallpaper thumbnails.