It's okay if you don't know much about mopeds or mechanical stuff now. You'll learn.
You don't need a Newport-specific manual. The Maxi Manual will work just fine. It's the same engine and the same frame. I think the only differences between all the Maxi versions are just cosmetic or a difference of how restricted it came from the factory.
You're probably going to want to clean the carb. break>
You should also read Fred's Guide (And by read it, I mean read it, print it out, memorize it, recite phrases to small children, and keep a copy in your wallet at all times.)
If you want to know what things look like, Mopedjunkyard has excellent exploded diagrams of all the parts on your moped. 1977mopeds does a really good job categorizing and photographing parts, which is useful as well.
Wikipedia and google are also good resources to search for explanations of things you don't understand. Old posts here (just search) will help bring anything you learn into a moped-specific context, but they're also a fantastic resource in general. You can learn pretty much anything you need to know from people on this site if you spend enough time here.