I'm having the same problem here..
I'm also new to alfresco.
I haven't test the zaizi's last solution, though..
I'm guessing that: the rule of "apply to all" n "move to boss' folder" invoke this problem..
So, the permission to write in folder is re-directed to "boss' folder".
If this is right, maybe we can stop the script from checking the permission in the "move target" folder,
and only checking the folder where we upload the content.
regards,
Welly