yeah...I checked the permissions.
I even set it up chmod 777 [it was just for testing on made up test directories anyway ] backup.sh, the data, the email, and the FTP.... to make sure.
and still...when I run the backup.sh script manually, it does the job. When cron runs it....it tarballs the Data directory leaving out emails and FTP directories. In fact, cron doesn't even get to the part where it tarballs emails, FTP...