Here is how to install maps for PE
Minecraft PE requires a computer and iFun-Box to install MCPE maps.
Step 1 - Download iFun-Box, visit one of these links depending on what computer you are using:
PC: http://www.i-funbox.com/
Mac: http://www.i-funbox.com/ifunboxmac/
Step 2 - Download the map you choose, the link for the map you want will be at the bottom of the maps page
Step 3 - Connect your device to your computer and launch iFun-Box. Click 'User Applications' and choose Minecraft PE.
Step 4 - Click on the following folders in order:
App File Sharing> Minecraft PE > games > com.mojang > minecraftWorlds
Drag in the folder that you just downloaded into this location and restart Minecraft PE on Phone
Step 5 - Done! The map should now appear in your list of worlds.
*If you have any questions or concerns please email us at info@jk2designs.com