All the Winterboard themes appear in the last folder (Themes.9Ybx6d). There's nothing in the other folders whatsosver, and I'm wondering what purpose they serve. I've been having trouble uploading a custom Battery theme and I'm wondering if the multiple folders are one of the reasons.
Here's the theme folder: RapidShare: 1-CLICK Web hosting - Easy Filehosting. Can't find the post I found the icons on in the forum... but yeah... when I upload it to the appropriate folder nothing happens.
Okay see, that battery has not been properly setup for the iPhone 4. What you need to do is copy all the files and label them without the "@2x" Then open them in Photoshop or likewise, shrink all to half the size so 50%. Save them, copy them back into the same folder so you should have 2 files of each, only the second one should be labeled with a "@2x" and should be twice the size. SSH and enable in Winterboard.