[syslog-ng] syslog-ng on AIX

I've installed syslog-ng on the AIX box and I thought I had pretty much replaced AIX's syslogd with it. However, it appears as though I'm missing a lot. Cron is logging to mail, for instance, and with the original syslogd it also logged to it. Syslog-ng is running and logging network messages, its own messages and that's it. So, the question, what more do I need to look at?