Hi goggs
I think you will find that the said manuals are applicable to your vehicle which is a "restyled" X244 "with grille", some on the forum who know more than I say the last X230 models had the JTD engines as well.

The second series body 94-06 (X230 & X244, the 230 had a different dash see attached pic) was restyled in February 2002, with the addition of rear and side bump mouldings and revised front grille as well as a new Dash.
The engine range was: 2.0 JTD, 2.3 JTD 16v and 2.8 JTD, 2.5 diesel was dropped (X244)
Officially the X244 went from 2002 to late 2006 replaced by the X250 then X290 which had "Multijet " 3.0 & 2.3 engines & in Europe there a 2.0 multi jet as well, not out here in OZ.
There seems to be a lot of crossovers between the 230 & early 244 with engines etc.

As you will find on the forum the X230 eLearn (WSM) & English versions of the 230 owner manual are extinct but the 244 eLearn is downloadable from the forum as well as said manuals.
From your Pics of the Dash it is a 244, maybe an early one with a mechanical speedo (a cable) & the old 3 pin diagnostic plug. The late 2002 to 06 had electronic speedos & the proper "D" OBD plug to the right of the steering column (RHD).
See Ducato Versions
https://en.wikipedia.org/wiki/Fiat_Ducato
Cheers