2000 c5 a6 4.2 manual transmission conversion

hi to all
working on my 2000 a6 4.2 with manual transmission conversion
all work has been done car runs just the ecu needs to be worked
little did i know this years ecu is a me 7.1 and I cannot use my s6 euro file which is for me 7.1.1 to fix the driving issues with ecu like i did on my 2002 s6 avant
i keep reading that some people have used JHM ecu mod and would like to know if anyone can help out
thanx for any help