Connecting Boiler Spur

[steq184]

Well I have gone and purchased a switch spur for my normal central heating boiler i.e. with controller and wall thermostat.
I have opened up the old normal switch connected to the boiler and find the following wires:
Blue from boiler connected to another blue using connector block.
Red from boiler connected to another red using connector block.
Yellow & green from boiler connected using a connectot block to black going to another socket.
Yellow & green with red sleeving over it from boiler connected using a connector block to an earth cable with red sleeving over it.
Black from boiler going to one side of the old switch.
Yellow (not from the boiler) going to tthe other side of the old switch.

Inside the new spur I have 2 earths, live in, live out, neutral in and neutral out.

How do I connect all these together?
Any help greatly appreciated.

 

[steq184]

Yellow & green from boiler connected using a connectot block to black going to another socket.


Have opened up the socket, the black wire is going to an earth.