Just bought XenForo, help with ads

Just bought myself a copy of XenForo, building my forum now but I can't find any places in adminpanel to insert ads. Is it me or are there really no simple way to insert ads on the board?
I noticed Robbo's admanager, but after spending $168 I don't feel like spending another $39 for such a (imo) basic feature even though that mod seems really good.

Please help me!

Sincerely :)