I was searching the forum for samba acl but I couldn't find any result.
Anyhow after some googling I enabled the great feature of ACL so I can control who can access the files and the resources.
It was very simple only what you need to do is editing /etc/fstab and modify it by adding acl support to the file system to be as following :
/dev/main/root / ext3 usrquota,grpquota,acl 1 1
reboot the system and enjoy the ACL. I have test it by myself and it's working.