Hello monkeymedia-
The fact that you can’t view http://seriouscatering.com/test.html would indicate that there is something wrong with you server setup. I know you mentioned that you aren’t using .htaccess, but can you double-check this in the main http://seriouscatering.com directory?
Also, can you consult your host to see why you can’t see a simple HTML file in your domain root? They may be able to offer some insight. Thanks!