VS011 Seat configuration

Hi my first post so please be gentle with me.
My wife & I are due to fly to Boston in October from LHR, I have looked at the seat ratings for the configuration that is showing for our seats and see that there are no ratings for the configuration, it's a A340-600 Config 2 as best as I can make out. We are flying PE and there seems to be 1 row extra compared to config 1 showing on the aircraft that is seemingly allocated to our flight.
Is there any reason why there are no ratings for Config 2 or am I missing something? [?]
I hope I have made sense of my first post.
Thanks
My wife & I are due to fly to Boston in October from LHR, I have looked at the seat ratings for the configuration that is showing for our seats and see that there are no ratings for the configuration, it's a A340-600 Config 2 as best as I can make out. We are flying PE and there seems to be 1 row extra compared to config 1 showing on the aircraft that is seemingly allocated to our flight.
Is there any reason why there are no ratings for Config 2 or am I missing something? [?]
I hope I have made sense of my first post.
Thanks