Ah - good choice - this is one of my favourites! I suppose you what to know how to get it on the desktop now. There are a few ways to get the wallpaper to be your desktop background. 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! Next goto your computers display control panel and set the background to the image you just saved.
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'. It'll come to you when the time is right. I have faith in you. You know already I'm sure. I'll button it now.
Return to wallpaper thumbnails.