Main page problem

Hi,
I'm just trying to drop one module from the main site. Do you know how to disable that area.
The problem is about http://kssitest.ue.wroc.pl I put there BikeStore and still don't know how to disable that white place on the down part of page I mean gd-mainbody located between contact section and bottom menu. If I change padding to 0px there is no margines in articles.
Please help me to resolve that problem.

Hi

Please publish the widget from upper position to mainbody, this way post area will be replaced with widget.