I'm working on my theme, it's gonna be for losers like me, lol but w/e. Haha!

I'm trying to change the background that's on the screen that appears when your iPhone is charging. You know, the one that your battery shows up on... Yeah, I can't figure out how to change that black background behind the battery.

Also, I made my "LockBackground.png" and placed it in the theme folder, along with "Wallpaper.png". "Wallpaper.png" is working, but "LockBackground.png" isn't working when I respring.

I'm using Winterboard, and iPhoneBrowser on my pc.

Is there anything I'm missing? Anything I'm not doing right?