Thanks guys. I've taken out the itemprop things because I think you're right Daniel. I can't remember where I got those but I don't think they were being used right.
Nghirniac thanks for the link to the check list. I did have that already and use it a good bit.
None of the corrections really made much of a difference thought so I changed the DOCTYPE to several different ones and that only created more errors. Are there just some things that the WC3 tool will find to be incorrect no matter what?