How do you change the message alert tone on a samsung GT S5511T?

Go to menu, select settings, select phone profiles, press the arrows >> next to normal, select the drop down where it says incoming on the top right, then select new messages, this is where you cab change msg alert type, msg alert tone, msg alert repetition, msg alert vibration. you can select sounds at the bottom right to put in your own tone you have in your on sounds / music file. got there in the end couldn't find it in the manual.