Problem in Tab bar applications

[Gemini1987]

Hi

I am new to Iphone application development and am still trying to figure how to create a basic tab bar application.

When i create a new tab bar application, in the resources folder i get three .xib files, mainwindow.xib, firstview.xib and secondview.xib. If i click on the mainwindow.xib interface builder opens up but i am not able to see the view for editing. Same is for the firstview.xib. I am able to see the view only in case of secondview.xib. I want to edit the tab bar items and want to enter more buttons in the tab.

The tutorials said to double click the main windows xib file to make changes to the tab bar items.

Please help me out !!!!!

Thanks in advance