Reply for Etienne_sf
My problem is due to function "create directory" in file --> j_upload_management_inc.php
If i upload all my pictures in primary directory created by COPPERMINE all is ok.
So in your plugin i have disable this function :
//If the directory doesn't exist, we try to create it.
//if (!is_dir($dest_dir_jupload)) {
// echo ("[DEBUG] j_picmgmt.inc.php: the directory does't exist. We create it.\n");
// @mkdir($dest_dir_jupload, octdec($CONFIG['default_dir_mode']));
//}
and now is working with all file in one directory --> " Not efficient ... but it works! :-) " lol

:p
oucchhhh i'm quite sure to pass a very good night after this problem is solved