cron not running jobs, no errors

I installed cygwin on a windows 2003 Server. I installed cron and started the cron service with no errors. I ssued the following commands to install and run cron.
cygrunsrv -I cron -p /usr/sbin/cron -a -D
cygrunsrv -S cron

ps -ef | grep cron shows me that cron daemon is running.
  SYSTEM    1376    3568   ?  16:03:03 /usr/sbin/cron
/var/log/cron.log is empty

crontab -l
# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (/tmp/crontab.7PA6kDrlJe installed on Fri Sep 28 18:02:18 2007)
# (Cron version V5.0 -- $Id: crontab.c,v 1.12 2004/01/23 18:56:42 vixie Exp $)
04 * * * * sh /home/Administrator/dba/hot_backup_smps.sh > /home/Administrator
hot_backup.log

Any help would be appreciated.