Hi Ruben, we are facing exxactly the same problem.
did you finally found a way to print both your graphical bakground and text in front of it?
to be more precise we have a full backgroun image, and we only miss the MAIN window details. All others windows are well printed in front of background
We have tried to create a MAIN_BIS window and reduce main in a corner but still nothing printed there
any feedback would be more than welcome
thanks