10
My GOD!! This gave me a headache!!
Yep, indeed it has some serious problems and you noticed the most important ones. First of though, if you are using Dreamweaver use it in "text" mode and modify the source directly!
Furthermore, I see a loooot of code there and unnecessary markup. I also see style rules being applied 2 or 3 times. Internal, external stylesheets you name it! They are all there
Finally, try to use lowercase letters since the DTD is XHTML 1.0 Transitional and uppercase letters are not allowed