Worksop
OP, here's a couple of pics of what mine looks like. The white/brown wires are attached to the non banded side of the diode and they are both soldered to an isolated lug on the switch stack just to anchor them rather than floating in the air like yours. The banded side of the diode is then attached to one side of the lane change switch.
The green/blue wires are attached to the other side of the lane change switch.
Yours should still work if wired correctly even with the "floating" diode 
For the flipper the blue/brown wire is connected to the right hand lug in the picture. A wire also runs from this lug to one side of the EOS switch. A wire from the other side of the EOS switch is connected to the centre lug. (this is the only wire connected to the centre lug) The blue/yellow wire is connected to the left hand lug.
Hope this helps.
Andy
