Hi there!
The directions are the same, they refer to the compass readings.
I'd like to add that you have 4 good directions, so Wisdom/Growth = East for kua no. 3.
In Diamond Feng Shui I think the emphasis is laid on the direction you face and not on the position of the room within the house.
When sitting at your desk you should look towards South, Southeast, North or East. But first, you should establish your power position (you should be able to see the entrance without twisting your body, you should not face a wall, it is good to have it in your back, if possible have some free space between your desk and the incoming flow of people - you'll find illustrations in the essentials course). Then you should try to face one of your 4 best directions.
In your bedroom your head should lie towards one of your 4 best directions and you should be able to see the door from where you sleep.
I hope my explanations offer some help.
Have a nice weekend,
Astrid