By: kelbytv.com/photoshopkillertips/
Here's a tip on how to fill the non-transparent areas of your layer with color.
http://kelbytv.com/photoshopkillertips/2010/03/19/quickly-fill-non-transparent-areas/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PhotoshopKillerTips+%28Photoshop+Killer+Tips+%28Video%29%29