Whch configuration?

Hi
we are travelling on VS085 on June 12th, I have been looking at seat maps but there seem to be 2/3 configurations of the 747-400. Does anybody know which one is used for this flight.
Thanks

It's the LGW 747, as opposed to the LHR one.

You can tell which is which by the layout of the upper deck. The one you want is half Premium Economy half Economy. The LHR layout is half Upper Class half Economy.

Fab, thank you!