screen orientations in Android, landscape

Question

I would like to know how to modify views when the phone orientation is changed. Like for example my app works fine when you hold the phone "the normal way" but when you moove it into the landscape position then the app appearance becomes ugly: -how to make sure the wallpaper doesn't "turn" together with the phone, here is my layout code: name of file: list-event.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"

  android:layout_width="fill_parent"
  android:layout_height="fill_parent" android:orientation="vertical">
   <ListView android:id="@android:id/list"
  android:layout_height="wrap_content" 
  android:layout_width="fill_parent" 
  android:background="@drawable/fon2"></ListView>
</LinearLayout>

As you can see it's just a simple list but I would like the background to stay the same. I put the same content for layout and layout-land I just put this same file list_event but I think I need to add some comand for the background image to be oriented in diferent way. I hope you understand what I wrote thanks in advance