I am the original author of the plugin; it has been adopted by David, and he provides Support here.
Off the top, I suspect that you’ll need to switch to a WordPress Network (Multisite) with the blog being a second Site, to get that sidebar.
Although out of date, the Theme Options tab of the plugin’s Settings in the WordPress Admin panels lists some “workarounds” that you may wish to try. For example, if your primary theme does not need a sidebar or other Appearance options (AJAX may also be an issue), you could try the Advanced Setting “Select Theme for Everything”.
Thank you, that was helpful.
I’m seeing the sidebar now. Did you get it fixed?
–David
Well we actually made it a multi-site setup, so it is visible here http://www.worklabinc.com/devcuster/empower/category/empower-magazine/
Thanks for checking