Hey everyone. I feel silly for asking this question but I've spent an hour now googling to death how to transfer ringtones I've puchased from iTunes onto my iPhone 3GS. I've done everything possible. I've renamed the files to M4R as suggested from m4u. I've just dragged onto the iphone in devices and not in the music library or ringtone library and nothing. Under the Ringones tab on the iphone when connected to iTunes shows no ringtones. Does anyone have any sggestions?