Ok you posted the wrong link, it should have been
www.x-sector.net/index.php
Anyways i cant remember exactly what i did. You can do either 2 things. Right click on your missing images and choose properties, this way it wil show you where its trying to find the image, in your case for example---
http://www.x-sector.net/images/neXus...op_profile.gif
So you can either create a folder in your images folder names neXusGREEN and chuck all the images you want in there. Orrrrr, Edit your portal's templates and wherever there is a image link involved, change where its looking to the right place.
Sorry if this is confusing you, If it is say how and ill try to explain better.