I have done several apps with buzztouch for Iphone and Ipads, here is a free one as an example :
http://itunes.apple.com/us/app/lr-basics-free-edition/id497563707?mt
Hint: Upload the audio file to your buzztouch account files. This is the only way Buzztouch will recognize the audio. next, add the audio file to your xcode bttouch sound folder and add all references. You should be fine!