How To Install Texture Packs (PE) (iOS)
Warning: Close Minecraft PE on your iOS device before proceeding!1. Visit http://www.macroplant.com/iexplorer/
2. Click download for Mac or PC depending on system
3. Connect your iDevice to your computer
4. Open up iExplorer
5. Click your iDevice's name
6. Click "Apps"
7. Click "Minecraft PE"
8. Click "com.mojang"
9. Get the texture pack you want
10. Drag the "terrain.png" from the texture pack folder into the iExplorer window
11. A window should pop up click "OK"
Now Your Done! Close the iExplorer window and open Minecraft PE!