I did it (validate) by giving it the page name =
http://www.dbnzcoatings.co.nz/
Did it again and got 4 errors:
Line 60, Column 40: there is no attribute "src"
… <embed src='header-image.swf' width='308' height='1…
Error Line 60, Column 65: there is no attribute "width"
… <embed src='header-image.swf' width='308' height='150'></embed>
Line 60, Column 78: there is no attribute "height"
… <embed src='header-image.swf' width='308' height='150'></embed>
Line 60, Column 83: element "embed" undefined
… <embed src='header-image.swf' width='308' height='150'></embed>
Looked at site again with IE8 and it looks correct. The DBNZ is down from the top, in same place as it is in FF. Menu is there.
Menu in both IE and FF, the word 'product range' is grayed out and does not turn red on mouse over.