Supposedly if you're playing the international version you can replay from Home :]

If you saved before going to Home, save your current game, then load that game. Play through until you get the primers, then save again in another slot, reload your current game, Go find one of those weird al bhed spheres, the big blue one in Macalania's Travel Agency is the only one that comes to mind. Tell it to compile, and you ought to get your primers :]