Fire Emblem is a difficult series, I don't know if you guys have heard

[Khuutra]

nordlead said:
When you start RD it will prompt you to load from PoR and you can choose which save file. If you have an easy save file on your GC card then it may freeze your game and refuse to load. You have to have a normal or hard save file for it to transfer.

This is apparently fixed in newer copies of the game.

Also, don't forget your card needs to be in slot A!