Help wiring receiver

[Gareth Hemingway]

Hi,
I have recently purchased a hive heating control. I currently have a Potterton boiler with a integrated 24h timer. The only other control over the heating is a thermostat in the hall. I need to disconnect the thermostat and connect the Hive receiver. Any help is much appreciated. Please see below wiring diagram for Boiler and Hive. I plane to use 5core from the boiler direct to the hive unit.

 

[Gareth Hemingway]

I've just come across this:

Is this the wiring I would need, although 4 on the hive is unused?
I was told I needed 5core?

 

[Octopus]

I have real issues with the amount of people buying these "DIY" install type kits then come on here for step by step guides.

My advice is to get a spark in..............

Do the instructions suggest this?