Adding Your Own Custom SMS Recieved Message Tone (1.1.1)
Okay, this is a really crude way of doing it... and i was tired of not having my original sound that i wanted (since Customize won't allow you to change the SMS Recieved Tone... yet).
First off, if you go to Settings > Sounds > New Text Message it'll list the sounds you can use (by default it's Tri-tone).
Now, with this method, you won't add a new one to the list... and it won't be named anything special... but you will get a different sound.
To add a custom one, open your favorite program for modifying the files on your phone (i like WinSCP).
On your phone, browse to /System/Library/Audio/UISounds/
Now the sound you want to use must be in .aif format... i'm not sure about converter's for that format or anything else, i just wanted to use one of my old borat ones which was conveniently already converted.
To Create an aif file from any file you have you can use iTunes. Simply go to
Edit > Preferences > Advanced > Importing (Tab)
Change the "Import Using:" dropdown menu and select .aif
Now, if you have a file you want to convert go to File > Import , browse to the file and add it to your library. After it has been added, right click on the file and hit "Convert to AIF". After the conversion finishes, go back to your music library, click on the newly converted file (which should show up directly below the previous file), right click on it and hit "show in windows explorer". Move the file to your desktop, or somewhere else easy to locate.
Now back in WinSCP, rename the file (on your phone) "sms-received1.caf", to "sms-received1.caf.orig". This will make a backup copy incase you ever decide you want it again. If you don't want it back, ever... you can just delete it.
Now, copy YOUR .aif file into the UISounds directory, and change the name of your file to "sms-received1.caf".
Success! Now when you change your SMS Recieved Tone, it will still say "Tri-tone", but it will play the sound that you added!!!!
If there is a .plist file or something else that someone knows of that can be edited so you can add these the correct way please let me know and i'll update this.