Hi not sure if this is the right place but I have a layout issue in IE guessing it's all versions the site displays ok in Firefox and Chrome but is full of bugs in IE8 I suppose the best thing would be check the offending page and ask me what you need to know.
problems
horizontal nab bar at top in displaying vertically
main body content is displaying below the left nav
bottom nav (black background) should be centered on the page
URL
Doh! it would help you all if I included the url of the problem
Quirks mode
The only way I get your issue to show up is to force quirks mode in IE8. In standards mode, all is well. I don't see a reason for v.8 rendering in quirks mode, though.
You have syntax errors. XHTML is case sensitive; all element tags and their attributes are lower case. It shouldn't matter, but who knows? IE is notorious for being picky about syntax errors, so you would do well to fix them anyway.
While I'm here, screen resolutions make for really poor text justification; it would be a Good Thing, for readability's sake, to remove {text-align: justify;} from the two stylesheets where I found it for the body element.
cheers,
gary