Ok, everyone's askin' so I'm here to share, how to round the corners of your pictures. I used Photoshop Elements in this tutorial but you can do the same thing in CS4 too.
*Open your picture.
*Right click on the layer that says background. Click on "Layer from Background"
*Here is where you can rename it if you'd like. Click ok.
*Now go over to your shapes tool and click on the "rounded rectangle tool".
*In the radius box you can adjust how round you want your roundness to be. I usually go anywhere between 100 pixels and 150. But you can play with it and get it how you like it.
*Start at the corner of your picture and drag your mouse across the whole picture.
*This is what it will look like. The color of your rectangle may vary.
*See how the rectangle isn't covering the whole picture. This is just a matter of preference. We can leave it like that but I am going to adjust mine to fit the whole picture. I will click on the move tool. Which will select the whole rectangle and then I can drag it down to the edges.
*Currently our layers look like this and are in this order.
*Drag the shape layer down so it will be behind our picture layer. See how the order swapped?
*Now click on the layer tab at the top. Scroll down and click on "create clipping mask".
*See our picture now has rounded corners! ......almost finished.
*Go back to the layer tab and click on "merge visible" That will merge all of our layers into one!
*Now save your picture. When saving pictures for my blog I always save in .png.
There you have it!