For full screen view, click on your browser's 'View' and then 'Full Screen'.
In all cases, I have sacrificed picture clarity and detail for speed of execution.
To use as wallpapers:
Click on a thumbnail then right click on its screen picture. Now click on Set as Background & Explorer or Set As Wallpaper & Netscape. Save Image As, if so desired, in the 'C:\WINDOWS\Web\Wallpaper' folder.