Hello,
Your CKEditor version really makes sense. We have found a bug and adopted the plugins for CKEditor v. 3.
You can download update from "My files" section and try them.
The new version must work fine but in any case I recommend you to update CKEditor to v. 4: the migration is pretty easy and new CKEditor version has no compatibility surprises most of times.
When adding the plugin to my CKEditor configuration file, I get this error when loading the page :
Here is what I put in my configuration :