@Xerxes0002: Thank you for those links. I must admit the learnig curve coming from Windows to Lion have been really bad! And I really do NOT like finder. Half of the time I´m not able to find files wich I KNOW is on the disk for instance. LOL. On the overwriting: I´ve actually started a new work flow. On Windows you are able to unzip files directly into for instance the "Runtime" folder without overwriting the filles allready there. On a Mac that doesn´t seem to be possible.