Custom Signature Separator

[Jamie G]

Hey guys, is it possible to make a the default separator for signatures a custom image.

I want to make my own for my site instead of the lame ______________.

Thanks.

EDIT: Ok I found out it's in .postbit template or whatever for the CSS. Anyways, I added my own custom image, but the images in signatures sort of overlap it and I was wondering if there was a way to space out the content in the signature to the custom image I used as a seperator.