Lock Screen

Being new to BlackBerries, I may have overlooked it but is there a way to use a custom image for the LOCKED screen? I've played with Plazmic Theme Builder and I saw the option for the lock screen in there. Rather than create a new theme just to have a different lock screen, is there a way to just use a different picture for the lock screen?

I have tried looking but other than making it through the theme maker, there is no other way that I know of.

I think there is... But I have only seen it once. And can't rememeber where. Lol.

Posted from my CrackBerry at wapforums.crackberry.com

Anyone know if this is possible without creating a new theme?