There's an easier way!
Solve as a normal cube then fix the centre rotations at the end.
To rotatate the Right centre and Up Centre do the following:
Rotate R, R2 or R', do: RL' FB' UD' (then R, R2 or R') then DU' BF' LR'
Up centre will also rotate U', U2 or U at the same time.
To rotate a single Up centre U2 do the following: (RL U2 R'L' U) twice.
All 3x3 picture cubes (and fisher cubes, mastermorphix etc.) can be fixed that way!
Please take off topic discussion off this forum. Thanks.