wordpress index.php doesnt work right

Hi again. I’m loaded with questions today. Here’s another

Here’s a picture showing my problem http://thepokerbus.net/wphelp.jpg
The problem: index.php just isn’t working right. This is the homepage on my site. It doesn’t show me being logged in as an admin and certain features are buggy here which arent on any other parts of my site. The shoutbox is an example. It doesn’t work at all on the main page of my site. But it works perfect on every other page.

Another thing: I have a navigation bar, and one of the images titled ‘blog’ is directed to /wordpress . when I click on it it goes to http://WWW.mysite.net/wordpress. but if i click on any other link like /wordpress/articles the link goes to http://mysite.net/wordpress/articles without the www. This is how I want the first one to be but it’s not. Why is that?

This is what my index.php file looks like is this right? and thanks.

<?php
/* Short and sweet */
define(‘WP_USE_THEMES’, true);
require(‘./wp-blog-header.php’);
?>