It should be in the music folder and if it is the only ringtone it should be the smallest file. You could try and identify it that way.
Mission accomplished. I learned that I had to not only have it down loaded to my phone, but I had to have it downloaded to my desktop. Once downloaded to my desktop, I was then able to follow your directions and get it added to the ringtone folder on my phone. Thanks much for your help and patience.