It's not working.

I copied one of your page that I assume are outside the forum and using the code you posted:
http://www.php4-forum.com/php_tutorials/.
I made two versions, one with only the php code and the html and another with <? ob_end_flush() ?> at the very end. None of them work, I can't seem to load them in any of the browsers I've tried with. Have a look:
http://www.juventuz.com/home/gzip/
When I try to load either one, IE gives me a dns error. What do you think the problem is?