So you like the look of this one do you? Do you need to know how to put this on your desktop? 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.
Another way is when the full screen wallpaper is shown, 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've never felt so sure of anything. I bet you already know. I'll be quiet then.
Return to wallpaper thumbnails.