Hi there,
A few things: For the Buzzer problem you´ve got to set the Output Channel Number 5 Max to 2000, then you can change your Channel Neutral to 1500 and the Buzzer should work....
...BUT You should re-run your transmitter Wizzard!! Every input channel has its EndPoints and Mid Values wrong. Hit "Start Transmitter Setup Wizzard" or Ctrl+t. What Radio are you using? Did you follow the instructions on the Transmitter Wizzard the first time?