I know photoshop CS2 has a feature that creates high dynamic range images from different exposures, but how would I go about doing it in photoshop 7? Do I have to have CS2 or could I do it with layer masking and other tools in 7? I've just recently started reading about HDR images, so I don't know much about it. If anyone has any links to tutorials I would be eternally greatful if you'd post them. Thanks.