How do I save a image in photo shop so it doesn't have a background. I have done so with png files, but they always seem to load up on the forum with a white background. Any tips? Thanks.
You have to hide the background layer. (click on the little eye in the layers palette) Then save it as a .png.
Of course, this won't work if you're using the same avatar on different forums with different colored backgrounds. Getting it to work flawlessly on several different backgrounds can get to be a bit tricky.