TOSR0x with Bluetooth Bee

Hi guys,

Just starting my endeavor into Arduino programming. I bought the TOSR04 with Bluetooth Bee. I am trying to configure the Bluetooth Bee on the device and change its connection pin since 1234 is too easy for someone to break into it and try to hack it - this device will be in a public place.
I can't seem to figure out how to get the device in AT mode and get it configured...
The board has a USB switch for Micro or UART
The Bluetooth Bee has 2 dip switches which I take it I need to switch to ON to enable AT mode.

Can anyone help? As I said, I never played with Arduino boards before.