The way I make docks is to use an .ini file from another set of docks and tweak the settings to suit my dock backgrounds.
C/Program Files/Stardock/ObjectDock/Backgrounds In there you should find a file called 'ObjectDock Skinning Readme.txt' That has some information on what the settings are for in the .ini file.
If you don't see the above file, look in C/Program Files/Stardock/ObjectDock for a file called SkinningTheDock.txt. That will have basically the same info. (you might have both files, I do)