Haha! Here's the short tutorial I wrote up yesterday. It's for Paintshop pro.











In photoshop, it's very similar. Go to Layer > new > layer. Something will pop up. Where it says mode, select "Color". Click ok. Then select black as your color (it as to be absolute black ie: #000000). Then use a brush and color the area you want black and white. If you make a mistake, you can easily fix it with the eraser tool.