No worries Lykynz. One more thing. After you've saved the game in the world builder and exit the game, you'll need to open it again from the Play a Scenario option in Single Player where you will find your saved world at the bottom of the list. Otherwise, you can save the game after you close the world builder and then exit (now you'll have it in two places). Then, you can retrieve the game from the Load Game option.
I am still having problems with the world builder. When placing terrain, my computer (sound like the motherboard, but I'm not sure) starts beeping, slow at first, then more rapidly, but there is no regular pattern to the beeps, then the game freezes and I have to re-boot. Weird. I'm searching for answers, which are coming slow, at best. This game is going to be really awesome when I figure out the world builder a little better.