Download: https://dl.dropbox.com/u/35795576/Tiled%20Tutorial.zip Alternate Download
Map Reference Table: https://dl.dropbox.com/u/35795576/TutorialsAndResources/Map%20Information.html
Map Changes Reference Table: https://dl.dropbox.com/u/35795576/TutorialsAndResources/Tile%20Changes%20Information.html
This is a tutorial I made ages ago because I felt Nintenlord's wasn't very good. It explains in excruciating detail how to make and insert maps into Fire Emblem 7. It uses numerous images and diagrams for visual aid. It also has two reference tables to help you figure out the exact offsets of the original maps and tile changes so that you can replace them easily. Not even a person with an extra chromosome will fail at making maps now!
Let me know if I wasn't detailed enough at certain parts, or if you come across any problems.