Currently Being ModeratedJan 24, 2013 9:48 PM (in response to Deborah Burlingame)
If you did a restore on the iPhone as a new device after upgrading the iPhone, then they wouldn't be there. Were they ones purchased from iTunes? If so, you can transfer the purchases from the iPhone to iTunes. If you did not import the ringtones from the iPhone to the computer and did a restore, without a backup, the ringtones are gone.
More, maybe you can recover your ringtones follow to below page of how to recover music from iPhone.