Again another wallpaper that beggers belief! I suppose you what to know how to get it on the desktop now. You can set the wallpaper as you desktop in a number of different ways. One way is to right click the wallpaper below and then select 'save target as...' (IE & Opera) or 'save link as...' (Firefox). If you do this - don't forget where you saved it! Then go to wherever you set the background for you particular computer / operating system and select the image.
Alternatively, when the full screen image is up, right click it and select 'save image as...' or 'set as Desktop Background' or 'Set as Background'. When the time is nigh - you'll do it right. I think you have it in you. I bet you already know. I'll shut it now then.
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