SpringBoard Background Image

[BuTbKa]

Hello. Anybody knows how i can set background image in Springboard without SummerBoard? Where located bg img file? I try to search in SpringBoard.app but dont find it

[CALBUILD]

Let me know too
Heard other people having problems with summerboard?
Dont need it, just need the springboard mod.
One member has a step by step, but its for Windows??

Running FUGU (its great) so i just need the file location.
Does anyone know its exact location??

Thank You