website validator

I have been trying to get my website valid according to your site. But
recently I found that after I have uploaded my site to a host I get
loads more errors
Now I'm not sure if I should take off your banners or not because when I
upload them to your site to be checked they are fine and when I check
them again but using the url instead I get loads of errors
 
www.batty.nipz.com <http://www.batty.nipz.com/>