thanks a lot, but the credit goes also (mostly) to the creator of the patch I use for the 16:9 : https://bingshan1024.github.io/steam2003_maniacs/ and yes I like to do complex things on rpg maker 2003, fighting with the limitations (and the many bugs) is very cool !!
(btw yume nikki widescreen is finish you can check it on my profil)