I want to change the battery charging image on the lock screen Do I simply move the file containing the individual images to THEMES and access it through WINTERBOARD, or is the process different?
To use images in Winterboard you need to create a folder structure that will work. For battery images you need to create a folder called com.apple.springboard and place the image files into it. Then you need to place that folder into another folder named Bundles. That in turn is placed into another folder named for your theme. That folder is then SSH'ed into the /var/stash/Themes folder on your iPhone.
So it would look something like /var/stash/Themes.34H423/my_battery/Bundles/com.apple.springboard/BatteryBG_1.png and so forth for all of your battery images. Then you will be able to apply them in Winterboard.
If I've helped you, you can help me by clicking on that Thanks button.
iPhone, the Swiss Army knife of the 21st Century.