open iTunes. On your iPhone summary tab the one that tells u about your phone. Towards the bottom of that page there are three squares. The bottom one says manually manage music and videos. Make sure that box is not checked. Then on the ringtones tab make sure the sync ringtones box is checked. Next hit the
apply and then sync button at the bottom right corner. Your ringtones should all b on your phone now. If you have more music in your library than u want on your phone back on the summary page click the sync only checked songs and videos. Then in your library uncheck the songs that u don't want on your phone. All this typed ony iPhone.