Hi grimagon,
It's amazing how Firefox managed to display your page (no offence intended). I looked at the source of the page and found a lot of problems. It seems like you did some major mistakes when you edited your header, etc.
To see what I'm saying, just go to http://www.tradewithaustralia.com/exporters/ and view the source of the page.
Starting on the 6th line of the source, you can see something like:
Content visible to registered users only.
Something very very wrong has happened at the very start of your page. First, you have that bizarre </table. tag. Then you have numerous <body> tags and even a <table> in the header of the document.
What's even bigger a problem is that your document is ended at line 59 (with the </html> tag) but it's only just the beginning of the page (it hasn't reach the part that renders the categories of the directory).
So, I think you have to look through your template files again to weed out the bugs.
Regards,
York Kie