problem opening freehand files stored in linux server

hi,
i have mac and i work using a file server that has a linux. The problem is that when i saved a freehand file, after cloosing the program and reconect to the local server, i try to open the file but freehand ask me for the images the the document has. Is like freehand forget the links of the images or can't find it in a linux server where they are when i create the file.

Anyone knows what can i do?
thanks