Template breaking might be the wrong description of what is happening with that particular issue. Currently my board is offline (I have yet to officially launch it) until I can get these small bugs corrected. If you visit Hardcore Biker
and tag the "classified" link, the screen changes from a dark bg to white bg. The most of the time this happens is when you are not logged in.
As far as the cookie issue goes, I have confirmed and re-confirmed everything is how it should be as according the link provided and the instruction manual. To the best of my knowledge anyways. This issue seems to be more apparent in IE6 as oppose to FF or Opera. I am really starting to think that I obviously don't have "an I dotted or a T crossed" somewhere but I can't seem to get it worked out.