regarding your jpg images:
here is your code:
http://sportlink.co.uk/catalogue/skin1/images/banners/football.jpg
should be:
http://sportlink.co.uk/catalogue/skin1/images/banners/football.jpg
but image is still not found at this location
are you sure your image is in the right place?
based on your code, putting this link in your browser should produce the image by itself, but doesn't.
http://sportlink.co.uk/catalogue/skin1/images/banners/football.jpg
on this page, the two upper gray boxes are together with no space inbetween in my IE 6
http://www.sportlink.co.uk/catalogue/skin1/test.htm
hope this helps,
mike