Careful with this one - can be slippery when wet. 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.One way is to right click the desktop background below and then choose 'save target as...' (IE & Opera) or 'save link as...' (Firefox). Don't forget where you saved it though! Next you need to go to where your computer's operating system display settings and set the image as your background / wallpaper.
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'. You will understand what needs to be done the the moment arrives.I'm routing for you.My guess is you already know. I'll shut up now.
Return to wallpaper thumbnails.