I have a jailbroken iPhone 3G with os 4.1. I went and installed a theme and activated it with winterboard. The wallpaper worked fine, but all of my icons were stock, not the custom icons that came with the theme. The only icon that did work correctly was the winterboard icon. After digging around with iPhone browser, I noticed most of the files had @2x in the file name. I removed that and everything is working correctly, other than two things. 1) my Facebook icon has a background, instead of being transparent like it should be. 2) my cydia icon won't change. Even after renaming it. How can I fix those things?