I was under the impression that ringtones could not be assigned to SMS's, only to calls. But then again, I do not have a Blackberry, so maybe it's a feature Blackberries have?
If your friend's number is Canadian, and you don't get charged when you usually text her, you don't have to worry, as to you, it is still a "local" text. Your friend, however, will most likely have to pay when she receives the SMS overseas, as her te...