First, xPlusZ keeps the logs from growing by this script: /hack/bin/xPlusz/logsNullsz.sh
Rename it so it can't be run.

Second, 25xtreme, comments out about 8 lines in /etc/rc.d/rc.sysinit:

#if [ "$runsyslog" = false ]; then
# echo "No logging daemons started..."
#else
# echo "Starting logging daemons..."
# rm -f /var/run/syslogd.pid /var/run/klogd.pid
# syslogd -p /var/dev/log -m 10000
# klogd
#fi

These all need to be un-commented.

Third, around line 130 or so in /etc/rc.d/rc.sysinit there is a line-
runsyslog=false

This need to be changed to
runsyslog=true

Delete everything in /var/log .

Reboot. In your /var/log/ directory you will now see the ever growing system logs. When you are done perusing the logs, just undo what you did above and delete everything in /var/logs/.