Do you remember where you bought your Disney ringtone?
Try this site. I have downloaded several and they are free unless they are premium content. To date I haven't been charged anything.
http://www.myxer.com/home/
It was through Verizon Wireless, but I don't remember exactly which "service" (they offer a few) As I recall, I spent days looking at their ringtones through the website. It was easier than scrolling through the phone. Then, when I found it, I wrote down "where" it was - menu wise - and went to the phone to pull it up and download it.
Try this site. I have downloaded several and they are free unless they are premium content. To date I haven't been charged anything.
http://www.myxer.com/home/