I installed a wallpaper. But when I uninstalled it and replaced it. However I cannot get "part" of it to go away.

The piece of the wallpaper up top that encompasses the battery icon, and the ATT bars wont change, no matter how many times I reinstall a new wallpaper. The main wallpaper changes just fine, but there is just that crazy little strip that is left over from long ago.

Is there somewhere I can go to delete that particular file??
Thanks for any help.
Oona