#2 & #3 22 html 4.01 transitional errors & 22 css errors. I'm guessing some of this will be fixed when you change it to xhtml 1.0 transitional. Still go for strict if pos
Also, your flash nav doesn't sit right on the follow thru pages. As a host (reseller I'm guessing) you need to keep everything tight. Fix these bits then I can look again.