Recently I have been changing out all the default alert sounds on my iPhone 2g running iOS 3.1.3. There is a specific .caf that I which to exact from an app as I would like to use it with a specific alert, I did this the other day extracting a specific sound from the textPlus app that I have on my iPod touch but, i can't seem to remember where I found it. I typically use iFunBox, using it is not the issue it's just finding where the hell this app stores the sounds.

I apologize if I have posted this in the wrong board on the forum.
Thank you for any assistance you can provide.