Hi, I have access to Photoshop CS3 but I am a total newb at it. I am working on redesigning a website for my parents' business. The only logo file they have is a .png. I open this up in Photoshop and I want to eliminate the white background so it doesn't block the web page background. The problem is it looks like the whole graphic is single layer. Is there any way to remove the white background so it's transparent? Thanks in advance for your kind help.