I want to thank everyone that has helped with this problem.
What i discovered is that if you UPGRADE to Tiger Server from a
Panther Server install the Mailman Cron jobs don't get enabled or
run. However, if you install a clean fresh version of Tiger Server
and set-up Mailman from scratch the Cron Jobs are enabled and happen
as they are supposed to.
Luckily, in my case i was able to do a clean install of Tiger Server
and everything is running fine now. And it had the added benefit
that I was able to clean out some other things from the previous
I just wanted to pass along this note in case someone runs into this