Why syslog is not rotating?

[Itay <debian@itayf.fastmail.fm>]

Hi,

Can someone help me, please, to understand why syslog is not rotating?

# ls -gh /var/log/syslog*
-rw-r----- 1 adm 219M Nov  2 21:50 syslog
-rw-r----- 1 adm 2.5K Jun  5  2010 syslog.1
-rw-r----- 1 adm    0 Nov  1 07:50 syslog.1.gz
-rw-r----- 1 adm  661 Jun  5  2010 syslog.2.gz
-rw-r----- 1 adm  709 Jun  4  2010 syslog.3.gz
-rw-r----- 1 adm  689 Jun  3  2010 syslog.4.gz
-rw-r----- 1 adm  678 Jun  2  2010 syslog.5.gz
-rw-r----- 1 adm  675 Jun  1  2010 syslog.6.gz
-rw-r----- 1 adm  664 May 31  2010 syslog.7.gz

In case it is needed, here is /etc/logrotate.d/rsyslog:

--------------[BEGIN]--------------
/var/log/syslog
{
	rotate 7
	daily
	missingok
	notifempty
	delaycompress
	compress
	postrotate
		invoke-rc.d rsyslog rotate > /dev/null
	endscript
}

/var/log/mail.info
/var/log/mail.warn
/var/log/mail.err
/var/log/mail.log
/var/log/daemon.log
/var/log/kern.log
/var/log/auth.log
/var/log/user.log
/var/log/lpr.log
/var/log/cron.log
/var/log/debug
/var/log/messages
{
	rotate 4
	weekly
	missingok
	notifempty
	compress
	delaycompress
	sharedscripts
	postrotate
		invoke-rc.d rsyslog rotate > /dev/null
	endscript
}
--------------[END]--------------

Thanks in advance,
Itay