I used the global Dlink website (http://tsd.dlink.com.tw/), I chose the DCS-942L product, it gave me the firmware "FW: DCS-942L_A1_FW v 1.10_1229 (for EU)" (EU should stand for "European Union", so it is suitable for italian users - the built-in firmware was 1.02-1029_EU). I downloaded it and installed it. Everything now is ok, no problem anymore with false motion detection (with old firmware I was receiving 20-25 false motion detect during the night - now zero!!!), I've also the web management in italian languages, and I've discovered some improvements and bug fixes. I will give a look to your firmware wishlist to see if something has been solved/added or if there still are some pending improvements.
I tried to contact the italian Dlink tech support, but they have no email (only phone). I will try to use the italian forum in order to inform about this important update.
I suggest all of you to contact your local D-Link tech support in order to have an updated WW firmware because version 1.10 (1229) is an excellent improvement for this cam.
Thanks for your collaboration.