I wanted to add this thought to the previous post, but it wouldn't let me add more text.
For Firefox users: if you ever want to save a photo from Flickr but you try and it says "spaceball" GIF instead of a JPG, then go to the top of your browser to View. Change Page Style to No Style. Then scroll down the page and save the picture as a JPG. I also use this sometimes when viewing MySpace pages for easier surfing.