iPhoneRingToneMaker works with the iPhone 2.0 and iTune 7.7 updates . Please make sure you are using the latest versions of iPhoneRingToneMakers located at http://www.efksoft.com/products/iphoneringtonemaker/download.htm. If you are running an older version of iPhoneRingToneMaker and you don't hear your ringtones, this new version is for you.