Hi, Allen.
I visited your site’s Events archive (Month View) page and noticed it does not have the “Export Events” link in the bottom-right, like it should. Here’s our demo site’s Month View so you can compare: http://wpshindig.com/events/
That “Export Events” link is http://wpshindig.com/events/?ical=1&tribe_display=month
That link should work at your site as well.
Please note that each view (e.g. List View) may have a different export link.
Also, each single event has its own iCal export.
Please let me know if you have any follow-up questions on this topic.