Ok I have got saving and loading working.
Find the adf file simcd32.adf in the zone.
edit the follwing line if df0:s/startup-sequence to point to the location of your simon.iso on one of your hardisks.
Code:
run >nil: sys:SimCD32/SimCD32 dh1:iso/simon.iso
Saved games will be saved on the floppy disk in a folder called saves.