Undo the nut under the handbrake to be able to lift it up as high as you can.
Also it maybe wise for you to remove one of the front seats as it makes it ALOT easier. Only four screws.
Remove the screws in the oddments tray near the handbrake, in the armrest, remove the screws under the rear vent, near the rear footwells on the console and the forward footwells.
Also instead of using the guide which involves making a silly bracket, remove the bracket from the marea and take the clips aswell. If you want the vents to work at the rear take all the heating pipework underneath.
You will need to modify the heating vents as its not a straight forward swap.
I think thats all the info you need.
Joske