The Symbian of 8 years ago is nothing like today not even Binary compatible.
there was a clean break from S60v2 to s60v3 to put security in place.
btw Symbian LTD was set up up around 1998/99 to build a OS to combats Microsoft rumoured Move into the Mobile OS space to try stop them dominating it like they did on on desktops.
oh the irony how times change , joined forces with the Company they set out to avoid 13 years ago