Live server

How do I test my plugins and scripts on my own live data? It seems I can only run them and let them show in the takeoff bar, for example, if I'm in the sandbox. I remember something from the developers webinar that I had to be on the ultimate package, but I don't know how to get them to work with the live server. When I open up the dev tools, I can see my scripts and everything, and they are set to show up on the takeoff toolbar, but when I go back, they're not there. When I'm in the sandbox, they are there.