Light wiring diagram question - please help!

[Pipps]

Here are two photos of the driver's side and passenger's side rear light wiring harnesses:





I have a 2001 (Phase 3) HDi.

I have a couple of questions about attaching a 7-pin lightboard socket to this circuit. I am using a Maypole MP843 kit, which uses scothloks to connect its cables to the vehicle's existing wiring harness.

1. Is it correct to assume that the kit should be hooked-up to the driver's side light cables? Am I also right in thinking that the passenger's side lights are fed from the driver's side harness (with the insulated cable running out of the bottom right-hand corner of the top photo above)?

2, Which cables are which?

I ask, because the rear lighting diagram posted here completely confuses me and I see no correlation between the actual cable which I have photographed and the diagram itself.

I need to be able to identify the following:

1. R/H indicator
   
2. L/H indicator
   
3. R/H tail lamp
   
4. L/H tail lamp
   
5. Stop lamps
   
6. Rear fog lamps
   

I would be really grateful for some clarification please. Thanks in advance.