Just a quick one, maybe I missed it, but the add templates don't seem to have any attached divs and css to them, so when I added in my adverts underneith the page content, it was litterally rammed against the sharepage div without any spacing.
I would suggest that by default to include default div ids for all the ad locations, and an ad locations css file to edit them all.
There are times when you might need to use SPAN, rather than DIV for CLASS ID's. Just worth mentioning, depending on how you add adverts of course. That's probably why they left them out for people to mix and match things there own way, each person is different how they want to integrate ads. One bog standard CSS way, won't necessarily suit all.