I'm just getting this thing going on my summer camp site http://www.goculver.com and when I validate it looks at the main page of my wiki (www.goculver.com/culverpedia) as opposed to the main page of my blog (www.goculver.com) where I intend to display the ads. What gives? Do i absolutely have to keep ads on my wiki so the site validates? Why does it check that page of all places instead of my actual front page? I'd like to run the ads in the blog but it it only checks the wiki for validation I'll be out of luck.
You would need to run ads on all pages within the base URL. Since your wiki is within your blog's URL, that's why it's looking there.