Thank you so much for your patience and help. I'm sorry for being so dense.
I really try to fix things myself instead of being one of those people that doesn't try to learn and just has everyone else fix their stuff, but I'm just not figuring this out. I just worked on it for like another 4 hours. Still no luck. I even tried using Chesko's backpack (from Campfire- since I know his stuff is all done right), changing the fields to match, and pasting them in to create a whole new file. That one doesn't show up at all.
I just wish I knew what I was doing wrong and understood better what each field does and what the codes and numbers all mean. I can guess at some things, but most of it is greek to me, so I'm just groping in the dark, trying to change things I don't understand.
Here's the whole mess (The file that I seemed to make the most progress with in babyinbagsleeping.nif That's the one that shows up in CK, but not the game.): AttemptsatWarBabies.7z
P.S. I haven't made final changes to the baby yet because I want to get the mesh showing up first and figure out what I'm doing wrong. :-) Don't worry- I do plan to take your advice and change the aesthetics before releasing anything officially.