yup. checked the box on the plugins page, and hit save. Nothing happened. Took a look in the plugins/shutterfly directory, and all that was there was the css, an image, and the readme. Clicked the "usage information" link as well, but the info there is not helpful at all - no offense.
What I love about ZenPhoto is the simplicity of it. I'm putting together a gallery for some friends who just had a baby, and they aren't good with technology. ZP works so easy, I figured they would have no problem with admin. Because of its simplicity, it will attact users like this who have very little tech know-how. So better documentation all around would be great.