Swap of ECU's

Hi all Kaosers,
I have Peugeot 607 2.2 petrol 2001
possibly faulty ECU MAGNETI MARELLI IAW 4MP.15
and bought used one : MAGNETI MARELLI IAW 4MP.14
Found software on ebay which lists:
MAGNETI MARELLI 4MP.XX - ALL Version - Virgin
Do you know howto IMMO OFF? Or can I recode 4MP.14 from 4MP.15 ?
Do you suggest me some cheap HW programmer ?

I have some experience with soldering and electronics but