Your current site is empty of blog posts so it is impossible to know if it will "look exactly the way it is" when using a Nabble "newspaper" format. Take a look at a few of the samples at:
http://www.nabble.com/free-newspapers.htmlto see if that is what you want.
You do not download a Nabble application and host it somewhere else. You embed it in your site and let Nabble continue to host it.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.