Check this out:
You can actually link your doc/story/project right in your mind map, and then, when you need to see the doc, just click on it and a sidebar opens with your Word doc in it! The example above is the story I’m currently slogging through, and the cool thing is, not only can I reference the Word doc from within MindManager Pro 7, but I can even EDIT it right there, in the sidebar. If you don’t think that’s cool, well, I don’t think I want to know you anymore. Heh.
Update: You can open the Word doc in Word from your map, work on it in the full version of Word, save it, and you're dropped right back into your MindManager map.