1) You must have SummerBoard Working on your iPod Touch before you even begin. 2) Go to installer, download and install an extra theme for SummerBoard 3) In SMB prefs, turn off what you dont wan't to change. (YOU MUST LEAVE THEME WALLPAPER AND WALLPAPER ON!) 4) Go back to Installer and uninstall the theme you are currently running 5) Press the home button and you should see your locked wallpaper as the background 6) In settings, change your wallpaper to whichever picture you would like. Just remember that if you change your theme, the wallpaper will reset back. I hope this speedy way helps out.