getting to know photoshop

Okay, I know that I have been posting a lot lately, but I have to test out all of the photoshop stuff. To be honost, there is sooooo much about it that I don't have a clue about. I did manage to frame this picture. He had real bad red eye and the program get's rid of it which is cool, because our camera sucks. Anyway, if anyone know's more about photoshop and can give me a clue as to what or how I should do it, please, let me know!