In the interest of completion I have this update:-
I found out the hard way that both fuel modules fit and do the job. The only difference between them is in the resistance range of the fuel gauge sender units.
One of the modules is for the first incarnation of the Getz (1.3 or 1.5 engine.....which is the 31110-IC000 or Fuel Miser FPE-642) and the other (Fuel Miser FPE-864 is for the 1.4 and 1.6 (G4ED) engine.
Interestingly for someone like me is that the FPE-864 comes with BOTH senders. You have to decide which one to use and fit it onto the fuel filter. Lucky I checked resistances, as I needed to remove the fitted sender and install the
separate sender for my 1.6 Getz.