Hi guys! I've added everything on my page as in the setup and ads are showing - www.cerebru.com I have such text Account not not yet activated. | Site failed automatic validation as of 2005-01-07 (make sure URL and site type is correct - if everything is correct, make a request in the forum for assistance) what is the problem?
looks like it could be a mistake - since the footer is a bit up from the bottom. I would suggest a non-white color for your links, so people don't think you ARE trying to hide them. There really is no place for that kind of thing in the network. It's advertising. Hiding links is akin to getting something for nothing, and if you do that, there are about 2500 people who will be angry with you. Oh... and to answer your question, when it validates, it tells you what page has the problem. Go to that page and see if the link shows up.
Only the index page has the one obscured ad. That's why it won't validate. You really need to read the guidelines and follow the advice already given.