Dear all,
Thanks for all the help.
I tried to install the version R8BC004 for MAIN and FS instead of the R8AA018 (even though this one was the original one of the phone according to the XS++ log) and IT WORKED!!
Right now the phone has an italian menu and all the avaliable languages under EUROPE_5.
Thank you to everyone. Next i will try to add the spanish dictionary for the T9. I am sure I will mess up again, so stay tuned!