If you're using Windows XP or higher, there should be a screensaver that came on Windows for using a photo folder for rotating as a screensaver.
Just go to Google and select images 800x600 or larger and search for Redskins Cheerleader. Make a folder in "My Documents" or on your desktop and save them all in there.
Save your favorites. Since they're large and hi-res, they should come out clear for you.
Here's a link for a search to make it easy:
redskins cheerleader - Google Search
Plenty of "good" ones in there for you.