Save the image to your hard drive that he posted, using a graphics program, convert it to the necessary extension for windows backgrounds, which is usually a “*.bmp” depending upon your version of windows.
Move it to the correct folder within windows and change the current desktop image/background to the new image.
Voila!
I know how to do that, thanks. But it would leave me with a clock that, to paraphrase the Mamas and Poppas, always says twelve-thirty.
Except that the clock will perpetually show 12:58 on Thursday the 15 of January.