Search:

In the wrapper.php file

I think it's fairly normal given that the validator website has not caught up with the new inclusions of CSS3.

You should also be validating with css3 not css2.1! That way you won't get so many...

I have used the 'All in One' SEO plugin since I started using Classipress and it works a treat - I can have an advert put on today, do the SEO for the search terms I want and have it on the front...