Answer:
I make my own ringtones and it is possible to add them to the Hotshot and save them as ringtones. Use the Hotshot supplied cable to connect the phone to the computer. Copy the ringtones from the computer to the "Sounds" folder on the phone. Actually, that folder is on the memory card in the phone. Then prepare to send a pix message FROM the phone back TO the phone. Attach the sound to a pix message, no picture is required, and send the message from your phone number to your phone number. When the message arrives, select the More button, select Save as Ringtone. You can say No to the next screen that asks if you want to Set the sound as the current ringtone. If someone else has a ringtone you want, they can send it to you in a message and you can save the tone as a ringtone when the message arrives.