I am sorry you are having trouble with your RC switch. I noticed two things about your connections. First, in your description IN and VRC are reversed from what they should be. The servo red wire should be connected to VRC and the white wire should be connected to IN. The pins are arranged on the board so that you can just connect a standard servo extension cable from your RC receiver without rearranging the wires.
Second, VCC and GND on the right hand side of the board will need to be connected to an external power supply for the device to operate.
Alternatively, if you can safely lower the RC receiver voltage to less than 5.5V, you can short across the two adjacent pads on the back of the board, connecting VRC and VCC together. This will allow you to power the digital device through your RC receiver.