GW, so seatguru is wrong? I am flying PHL-FRA and then connecting to Oslo.

At the moment I am just using USAir's online seat changing tool, as the humans won't do it for me. Unfortunately, the seat map they display does not mark an exit row at all. This is probably because 330 is not considered to have an exit row officially. How did you find out which row is actually the exit row?

I will try and see if it'll let me change to 23