Mac not putting footer div at bottom of content
I am trying to rebuild our site from an old tables based layout to a new css based layout but am having problems creating a footer where our copyright, sitemap and tel numbers go. I created one for ie and netscape quite painlessly but now I am creating the stylesheet for IE5 on the Mac and it just aint having it, I have simplified it vy removing the contants but that hasn't helped. Please could someone have a look and see if they could suggest why?
sites are below