Q:

Displaying my own iad in application

I want to displaying my own ads in my applications. Acutally the ads banner are static images which are loaded after some delay. Is iad network should be enable for that the app which display these iads. Because i does not want to load iads from the apple.

A:

No. iAd is only for displaying ads from the Apple iAd network using an ADBannerView in your app. If you are just presenting the user a banner image that you have created then no matter what it does you don't need to touch or worry about anything to do with iAd.
From Apple's Documentation: 

The ADBannerView class provides a self-contained view. Your
  application should not subclass ADBannerView, nor should your
  application attempt to change the behavior of the banner view. For
  example, your application should never add subviews to a banner view.

If you are using an ADBannerview for anything other than displaying iAds from Apple you're doing it wrong. It seems like you want to display your own ads which are static images. The correct class to use for this is UIImageView. If you display your own images using an ADBannerView you will get rejected from the App Store.

