title: Display banner advertisement in iphone sdk 3.0 onwards
body: <p>I want to display the banner at the top of view when the app will be loaded but for that what ever we required is present on iphone sd 4.0 
  but i want to make it as 3.0 onwards so can any one tell me the suggestion on it.</p>
  
  <p>or provide me some links or source code which will be required for it..</p>
  
  <p>thanx &amp; regards,
  Priyanka.</p>