I am creating a theme for my 2nd Generation iPod Touch running 4.1. I am an no where near an expert when it comes to theming and I have come across a problem that I don't know what to do.

This is what happens:

As you can see, the whole of the page teleports to the top of the screen.

I think it may be because I have multiple wallpapers for different pages but I have no idea.
If you need any more information, feel free to ask, and I'll help in any way I can.