I discovered a way to reset the rosters to their default settings without erasing the names, but I only know this to work on the PS2. All I did was choose the play online option and then exited out before actually logging in to the server. What this did was load up the edited names with the hardcoded roster settings, but because you can only play with the default ratings, appearances, etc. while online, the changes were reverted back to their original listings with the names intact. Just be sure to save the file regardless if it says it hasn't been changed. This only works with 04, 06, 07, 08 and 09, but for some reason the 05 version doesn't allow the names to be kept. Try it and let me know if this method works on the PS3.