Step 1. Download the map files
Step 2. Extract the map files into a folder
Step 3. Go to run and type in %appdata% and hit the enter button on your keyboard open up Roaming/Tibia and open up the folder called 'Auto Map'
Step 4. Copy all of the map files into that folder and replace any that need replacing
Step 5. Make sure you close Tibia and start it up again