Divs messed up in IE only – Please help – urgent!

start by sorting out markup errors.

You can forget about the flash embed errors for now, but you have some closing tags out of place:
[Invalid]Markup Validation of cord-master.com – W3C Markup Validator. Scroll down in the validation report to see line numbers and source code.

Could these errors be caused because I opened a div in the header and closed it in the footer?

I’ve been playing around with adding closing tags before the body closing tag and I still get the same errors.

Any ideas?

Could these errors be caused because I opened a div in the header and closed it in the footer?

I’ve been playing around with adding closing tags before the body closing tag and I still get the same errors.

Any ideas?

You have to correctly nest your divs. Just adding closing tags won’t necessarily fix the problem, if the closing tags aren’t in the right place and nesting order.