I downloaded webshots - from www.webshots .com
it's a program that lets you find and collect photos from their online gallery and also from the community { people that upload their own photos and collections to the site}

the program will use the photos as wallpaper and/or screensavers with settings {for a calendar on the desktop wallpaper} {and various styles and time cycles thru the photos}

i used it for years and never had any problems from it.