Needs a little help on tutorial.

1. Connect your device to (iTunes,
a.Go to “Apps” tab & scroll down to
b.“File Sharing”
2.Select “Ringtones” app
3.Choose ringtones in the “File Sharing” section on the right and save them to the Desktop (easiest if you drag it to Desktop)
4.Double clock on copied ringtones (on Desktop) and hit “Sync” in iTunes

Jean Hancock about Ringtones for iPhone., v1.2