Apparently they have not updated their instructions......frustrating!! Hopefully you can fit your wings onto the fuselage because if the spars got moved at all they will not fit. What you don't realize is there is a slight amount of flex in the spar. I would test fit your wings to make sure they fit. If you have not done the other side, I would have the wings on the fuselage before gluing the 1 rib in place. On my brothers we had to surgically remove the 1 rib on one wing. The other wing was fine.