Hi just got a 7100g off of ebay for att/cing works great I don't have a data plan and got it mainly for the memo and calendar functions. The only thing I haven't been able to do that I would like to is transfer a ringtone to the phone. Is there any way to do this through the usb cable or must you have a data plan? Is there some other 3rd party software I can use to transfer the ringtone?