iframes - Centering

Hi,

Can any one help with an issue I have over centering an I frame, its located @ www.visitdevonandcornwall.com/pub.php

I am sure the answer is simple but I cannot fathom it out, I want the pubguide centered, please help

Centered horizontally?

It's trying to do that but you have to make the window really wide to see that. There's something like a margin on its left or on the right of the menu that's pushing it out, or maybe an incorrect width set. To be honest the code is too messy to make hunting it down easy, which is one of the problems with using something like Dreamweaver to build more complex layouts.