Finder Side Bar

Hello All, As we are in the process of finishing up our first InstaDMG image, we are finalizing some settings in OS X. (you may have seen my menubar topic, that issue is still unsolved :( ) Currently we are trying to alter the Finder Sidebar, we want it so that by default the "Shared" Section of Finder is not expanded, we don't necessarily want it removed from the finder, we just don't want it expanded. Any help would be appreciated. Thank You!