Hello and welcome to the forum!
The best is to look in the Forum List , scroll down near the bottom at
The Guides of Virtual Villagers 1: A New Home. There are
Strategy Guide and Puzzle Hints (a sticky thread with this:

);
Charley's Virtual Villagers Guide and
Village Monks Guide to VV on Easy (Spoilers)
When you quit the game, take care to always be in ½ speed (they eat less) or even in Pause if necessary (but you'll not get some Event) and to have checked 2 doctors and 1 farmer or they'll not do their task by their own if they are not selected.
Good luck!
