How do I change the lock screen wallpaper on my blackberry storm?

I know how to change the home screen wallpaper, but how do i change the blue lock screen to be either a different pic or my home screen?
How do I change the lock screen wallpaper on my blackberry storm?
The lock screen wallpaper is theme controlled. There isn't a setting to change it within the device.
How do I change the lock screen wallpaper on my blackberry storm?
You can't change it, I tried everything when I had it.
Sorry im an iPhone user

favorite shampoo hair conditioner

baby name for a girl