Related to iAd in iphone

I have integrated iAd in iphone app based on this tutorial. Now I am getting text advertisements in my application.

Is it enough to get iAds in application, because according to Apple:

Before you start adding advertising support to your application, you must first agree to the iAd Network agreement. Further, you must explicitly enable iAd for each application in iTunes Connect. As a part of the iAd Network, you control the kinds of ads that are delivered 开发者_高级运维to your application

Will any one clarify my doubt.

I got an answer for this i.e., we need to join into the iAd network while publishing our app. Check it , it might be helpful http://developer.apple.com/iad/.