Problem Adding Events to Header Menu

I emailed support and was asked to post this issue in the forum, so here goes:

I’m in the process of setting up the free version of Events Calendar on a new site at http://www.live-in-clarksville.com which will be used by local musicians to list upcoming live performances and venues. I plan on implementing the pro-version to enable the recurring events option and the other community plug-in I noticed to allow others to post events after I get the free version working properly. By the way, is there any way to allow others to post events without the paid add-on?

I’m trying to follow your tutorial perfectly and had no problems with the initial steps. When I got to this part, http://tri.be/finding-your-events-adding-them-to-the-menu/ a problem surfaced. In particular, this part of the tutorial:

On your site’s backend, navigate to Appearance –> Menus.
In the middle column, scroll down until you see an option for “Events.” You’ll notice that underneath it are other event-related metaboxes: Venues, Organizers, and Event Categories. You can add any of the above to your menus by just clicking the checkbox next to them and hitting “Add to Menu.” They’ll as a result appear in the list of menu items in the right-hand column.

On my site the option for ‘events’ is not highlighted and there are no event-related metaboxes to choose from. Would that be an installation error on my part? I’m using the 2011 WP theme and since I just installed it on the site I haven’t added anything besides the events calendar. I’ve attached a screenshot of what my Appearance – Menus page looks like. (couldn’t attach the screenshot to this post so hopefully you’ll know what I’m referring to).

Any help would be greatly appreciated.

http://ww.wp.xz.cn/extend/plugins/the-events-calendar/