All of these need SSH and/or iFile. If you have neither of those, I recommend you get one if you want to do these. ^_^ App names: Open iFile or SSH and find the app you want to rename. Open the (app's default name).app folder. Find info.plist and edit it with Notepad if you're doing SSH. If you're using iFile, just tap the edit button in the upper left. Find the line (should be near the top) that says <key>CFBundleDisplayName</key> Go down to the next line. It should say <string>(app's default name)</string> Just change (app's default name) to whatever you want the apps new name to be. You may need to respring for changes to take effect. App icons: Open iFile or SSH and find the icon you want to use to replace another. Copy it. Go to the folder of the app you want to have this icon. Paste the icon in the folder. Find the original icon of the app and delete it or copy it and name it BACKUP.png or something like that. MAKE SURE YOU KNOW THE ORIGINAL ICON'S FILENAME. Rename the new icon to the original's name. IE if the original was called icon.png and the new one is called lolz.png, then rename lolz.png to icon.png. Now your app has a new icon. Lockscreen sounds: This one's a little more complicated. Record two short sounds and save them as .AIF. You can use Audacity for this. One of them needs to be lock.AIF and the other needs to be unlock.AIF. If you're using iFIle, you need to get them onto the device somehow. I recommend using Dropbox and putting the sounds into your Public folder, then using the app to download them. When you download them to your iDevice with the Dropbox app, they go to the folder /var/mobile/Applications/Dropbox/Library/Caches/CachedFiles/Public. Open iFile or SSH and go to the folder /System/Library/Audio/UISounds. Copy your sound effects from your Dropbox folder to here after you rename the lock/unlock files to Default_lock/Default_unlock or something like that. Now, rename your lock and unlock AIF sounds to be lock.caf and unlock.caf. Erase the .AIF extension. You may need to respring for changes to take effect.