You have at least these two options:
1) Clone first tab controls into the new tab. You will have to use reflection to copy all properties. You can start here: http://www.dotnetethics.com/2008/09/clone-controls-c-sample.html
2) You can use the code section made by the IDE on design time that creates the controls of your first page and refactor it to a method that takes the tab page as parameter. You can use this to create the page content every time it is needed - even the first time.