And while you are looking at the sliding door example, consider validating your html

it will be a lot easier - honest!
I like the overall design, but I never like drop down / pop out menus, I don't think they are vey accessible? You could remove that and then display the sub menu above or below the news in the right column? You have done this on some page? Also the e-Mail / Contact Form page is very different?
Also not sure why the header graphic doesn't fit the gap dark grey area?
Why a selected tab in the main menu does not look like a selected tab?
No hover or clicked - for right menus?
Hover on main menu makes the text all but dissappear on my browser?
Looking at the code - the use of iframes I again think is not very accessible?
Bet you are sorry you asked now, sorry - just trying to be constructive
Russ