How to change notification/message/alarm tones on Samsung Galaxy Ace
Go to "My files" folder and SD copy the mp3 music file that you would like to use as my message ringtone by holding down on the file until a menu appears and select copy, then paste it in folder media/audio/notifications (also in "My files").
After you paste it then you can go to message/inbox icon located at the bottom of your screen and in the message/inbox setting now you can
The OP posted his/her question 5 months ago -- you really think they'll still be monitoring this thread after all that time?
Please check dates before posting a response!