I am trying to find a solution to my problem. In the 'advert' module position I am using a flash module. It is working fine on most of the pages, but if from the front page I try to access the 'upcoming events' then the flash header doesn't start.
Secondly, on the events tab if I click on any of the events, then the pop up will load up behind the flash.
Since my post I managed to make some progress. : That's why it looks OK at the moment.
What I have discovered is that if I turn SEO option off then I don't have these problems. Now I'm trying to see if there is any way this can be fixed from the developers side.