Tried using the latest version of the plugin with Kallyas theme. After installing and activating the plugin, I went to the widgets and tried to open a widget area, but couldn't they were all locked up. I tried in on Chrome and IE and the same issue. As soon as I deactivated the the widget areas started working again.
I don't know if it is due to a conflict with it and the theme's internal map or if it is a conflict with the latest version and WordPress 3.5.1. Any clues or ideas?