HOW DO I CHANGE THE TEXT TONE?

Here you go dude:

Menu -->
Settings -->
Sound Profiles -->
Normal -->
Drop Down Menu (where it says Call. It's on top, to the right of where it says Normal) -->
Message -->
Message Alert Tone -->
You can either choose a tone from the given 5 tones, or you can press Sounds and choose one from your own songs.
Just to let you know, in case you choose one of your own songs, a message tone is 10 seconds, so if you choose a sound which is longer, it will continue even after you have checked the message, so choose a tone which is within 10 seconds.

You're welcome.

Cookies are appreciated if i was able to help you.

Oh, and I know that this is your first post so its okay but when you use CAPS, it shows that you are shouting, and that is not encouraged in this forum, so please don't use CAPS again.

ur welcome
if i was able to help, a cookie wud be good

and shouting is not appreciated

no problem
glad i could help

You have to click on the sound setting you want, such as clicking on Normal.  The drop down menu will appear in the next screen.

No problem.  Glad you got it working.