Find "Message alert tone"
Press Menu.
Scroll to Settings and press OK.
Scroll to Profiles and press OK.
Highlight the active profile and press Options.
Scroll to Edit and press OK.
Scroll to Message alert tone and press OK.
Select your message tone
Go to the required folder.
Highlight the different message tones to listen to them.
Highlight the different message tones to listen to them.
Once you've found a message tone you like, press OK.
Exit
Press Disconnect to return to standby mode.