The site is offline but the logon to view is test and test.
I have the template set to not display the main component on the homepage but no matter what i try I still don't seem to be able to get the bottom modules to come up tight against the showcase position, looking at Firebug it is showing a rt-main-surround div in the white space between the showcase and bottom modules..
could you disable rokgzipper so we can see the original css-files?
please also attach a screenshot that shows the issue, i dont seem to see it when i view your site.