BuddyPress.org

That’s why you could try one of the wordpress plugins, some of them make it really easy to add all kinds of advertisements to your wordpress set-up. The only problems will be; version of wordpress (buddypress 1.1.3 only works on 2.8.x), buddypress itself and theming.

Just need to do some trial and error with some of the plugins.

Try this: https://wordpress.org/extend/plugins/advertising-manager/