@Eleanor015 - Hi there. I realize that there are limits to what you can do with posts while you have New Member status and ordinarily when it comes to TS3 this is a pretty good place to start. But I'm afraid yours is more of an art/design tool usage series of questions rather than technical ones. Not every player is well-versed in CAW usage. I've never even tried to design a world myself, and hold those who are able to do so in very high regard as by all accounts it's a very tricky process. Perhaps you require a better tutorial than the one you found, but I believe most world designers also acquired much of their skills through trial and error.
You may want to peruse and possibly participate in threads on the Creative Corner >
The Sims 3 World Builders forum board here and on other sites where world designers congregate like ModTheSims in order to get more useful information and tips.
