http://catalyst.dkpsystem.com/news.php

This has been driving me crazy since I started the service with dkpsystem.com....then I saw that it was done on another dkp site.

How can I show a realm status block like the one on the site i liked?

The Catalyst site isn't using our standard server status script, he's using his own custom one.

He's loading the script from a personal site where he's got his own server-side scripts processing that little bit.

You could make a private thread with Krellin and ask him about it more, since he's the designer and maintainer of that site.