Ok I have a really cool pic of a old barn. I uploaded it into CS3 and turned it from color to B&W. Now im trying to change the color of like the door back to red and still have the B&W pic but with a red door. I have a book called Photoshop CS3 for Dummies but i must really be dumb. I can find the file called history but cant find something called history brush. Can someone help me?