Here is how it looked on my computer. I'm working in PSE10 on a Mac.
First, with an image open, go to Filter, Noise, then Reduce Noise.
Using the setting that the Texas Chicks used, gave me this variation.
This was too blury for me so I fiddled with the setting, especially the preserve details.
Many thanks to The Texas Chicks for giving me a new technique to use. Hope this helps you with your editing!