I don't know... When people try to learn basic points of grammar like this, isn't the best answer obvious? Get a textbook. Learn the language. I've always thought trying to learn japanese from a message board is not a good idea. Fine for clarifications, but trying to figure out how to use de/ni/he from people who are also learning the language? Why not find a teacher or textbook, they're made for that.
I guess I'm just confused about all the "what does kanji X mean", "can you explain this basic grammar point for me", etc. Get a textbook and a dictionary, problem solved. You know, the old saying, "give a man a fish..."? Applies great here too.
Sorry for derailing the thread, I was just wondering.