ih3 manager - problem

[RodG]

the only language file that is in my source is

back (admin) / includes / languages ​​/ italian / extra_definition / bmz_images_handler.php

you mean this for language files?

Maybe.
does this file contain something like

define('TEXT_MSG_NOUPLOAD_MEDIUM', 'text to be displayed') ;
define('TEXT_MSG_NOUPLOAD_LARGE', 'text to be displayed') ;

If so then it is the correct file for the *italian* language. If your cart is using english then you'll need to place a copy of this file into
back (admin) / includes / languages ​​/ ENGLISH / extra_definition / bmz_images_handler.php

As per my earlier reply though, this will NOT have any effect on your upload permissions problem. You apparently do have two *different* problems and it seems to me you are trying to fix both at the same time without really understanding what your changes are actually doing (or more mysteriously, what they are *not* doing.

Cheers
Rod