Joomla is setup to just accept Google AdSense ads or ads of the local forum.
You can still use other affiliates as well as Ad-sense. Google (and another s) love Word press. http://bank-kit.ru/bitrix/redirect.php?event1=&event2=&event3=&goto=http://anthonyrobbinsresources.us/__media__/js/netsoltrademark.php%3Fd=Launchhappy.co