Creative use of white space

We're having a few problems with our ads on the site, you may have noticed. sometimes they don't appear and you get big white spaces. more of a problem for us than for you really, but just in case you're wondering, that's what is meant to be in the holes. We're working to move the ads over to the same server as the site but that's what broke it yesterday, so this time we're going to be a bit more careful...