Hmmm I hadn't read the WT when I found the link - but it does refer to things that aren't in the game version I have. BUT - the steps of that version are in there. Gee I want this longer sounding version.
It's been a while since I played this game. If you can't leave the house you have prbably missed something in the hallway, your Uncle's study, the upstairs or the kitchen. In these games you need to try each conversation or search each area with as many of the four kids as you can get to do each thing. One person will get results, find an item or may get the right trigger conversation that the others won't.
I got stuck more than a couple of times in this game and the other FF games as well. They aren't that easy - even if they are labeled as kids games.