haha ah yes, well, Id say read this: http://jamesandkenneth.com/PDF_docs/J&KBEFOREtext.pdf
theres a section (chapter 4, starts on page 30) about chew training and good ways to manage a puppy until its trained, you may find some helpful info in there, particularly with management. the ex-pen is my best friend. lol my board & train pups spend most of their time in there so as to avoid learning bad habits (as well as to teach them how to be alone, what to chew on, and to help with house training, etc). I dont know if the quiet spot is the only "illegal" chew issue youre having, but this book has tons of awesome info, even for experienced puppy owners.
the front room is a different issue, thats more a management problem it sounds like. you can try timeouts if shes never allowed in there ever. they are pretty simple, and generally only take a few days to work. all you do is as soon as she steps one foot in the off limits area you say "Too Bad!" and then go pick her up and put her behind the nearest door (closet, bathroom, bedroom, crate, etc) for *10* seconds. after 10 seconds, open the door, say ok! and let her back out. usually it takes 4-5 time outs at a time, for just a few days, and then they figure it out. its pretty amazing!