agree your site is too wide.
also I think the header on the top is way too big, i dont see how the picture relates to your forum?
Lastly if that is a phpbb forum looks l ike you have removed the link on the bottom? As far as I am aware that is against TOS, so you need to put it back. If its not phpbb or I missed it then ignore me!
Nice site though, looks like you have a few posts which is great.
Ill post up my forum in a few days so you can critique it.
edit: oh yeah, im from Adelaide!