It's not fixed for me... At least not on the editbbcode.php page.

It links to http://dkpsystem.com/guide/bbcodecreation which redirects to the dkpsystem.com main page.

It looks like it should actually link to http://www.dkpsystem.com/guide.php?guideid=49 for it to work correctly.

Try clearing your cache. The Javascript has been updated, but the js file might be being cached.

Edit: I see, you're right about the BBCode Editor page. It's fixed now. The Forum ones (and guide and menu item) pages were fixed earlier, but forgot about the BBCode Editor.