Do you want Adobe PhotoShop specifically? I have both PhotoShop and FireWorks, but I use Google's Picasa2 everyday. It is legit and totally free (no trial needed). Also, it doesn't save over your files, you have to export them, so if you make changes to a photo and decide later on you don't like them, you still have the original. You can work on it for hours and hours and if you close the program, it saves the work you've done in Picasa's own files, but will not apply them to the photos until you've told it to. I like this a lot better than opening actual files in PhotoShop.