Careful with this one - can be slippery when wet. Do you need to know how to put this on your desktop? There are a number of ways to set the chosen wallpaper as your desktop wallpaper / background. 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.
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 you're ready - you'll know what to do. A walk in the park for you. My guess is you already know. I'll shut up now.
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