Hey girls, you can easily get the same effect in PSE! Michellefilo wrote a tutorial for it in that digi scrapping magazine. All you do is select your paper layer (marching ants) and create a blank layer underneath it. Fill in the blank layer with your shadow color (black, gray, dark brown, whatever). Give it a Gaussian blur (however big you like the blur) and then go to Filter->Distort->Wave. Your settings should be
Wavelength: min 1 max 999
Amplitude: min 1 max 5-7 (adjust to taste)
Does that make sense? It has the same effect with half the cost. ; )