When the
new window opens hold the pointer over the higher resolution (more
detailed)
image until the little request bar appears in the upper left corner.
(Should the request bar not
appear simply right click anywhere on the image, make the appropriate
selection and your done!)
Click on
the far left icon (the floppy disk picture) and follow the instructions.
To set
up the image as a Desktop Background on your computer call on a friend
who
is familiar with your computer's Operating System.