The linked address, if its on ImageStation, works OK if you cut it and paste it into the browser address bar. CLicking on the link gives a "trying to access an image from outside Image Station" sort of msg. Or at least that's what I get.
As for protecting the images, watermarking sounds possible if distributing stock source phots on a CD or something, but I wonder what happens to the steganography when the image is copied - then resized and recompressed. Dunno if the watermark will hold up to that.