you may need to change the group owner of the folder. depending on where you setup the folder you would do the following
Code:
sudo chgrp -R <groupname> /<folderpath>/<foldername>
then add all who need permissions to write to the folder to the group that you set as the owner. you may also need to change the permissions so that the group has write access this can be done by issuing the following
Code:
sudo chmod 764 -R /<folderpath>/<foldername>