Here is what the hybrid file for my test dream looks like:
[Hybrid]
BaseTimer = 25
[Image1]
Image = 284-1920.jpg
ImageHasAlpha = 0
[Image2]
Image = logo.png
ImageHasAlpha = 1
Width = 100
Height = 258
[Image3]
Image = nwa.nwa
[Layer1]
ImageIndex = 1
TileMode = 0
[Layer2]
ImageIndex = 2
TileMode = 0
XAlignment = 0
YAlignment = 0
X = 700
Y = 30
Width = -40
Height = -40
[Layer3]
ImageIndex = 3
TileMode = 0
XAlignment = 0
YAlignment = 0
X = 430
Y = 150
It is simply a text file saved as .hybrid. The instructions are in C:\Program Files\Stardock\Deskscapes.
EDIT: I apologize carguy. I think that I misunderstood what you meant.
I was confused earlier. As far as the hybrid file for the above dream, I would love to see that as well because the documentation doesn't indicate how you allow the user to enable/disable animations.