I was able to make a custom ringtone using a ringtone app and I was able to get it to show up in itunes but it won't be sorted as a ringtone in the "ringtones" tab (both in the library and on the iphone). I checked and it is labeled as a ringtone file type and it's 29.2 seconds long if I remember right. How can I get it listed as a ringtone so I can use it?