I've tried starting the Atkins diet, but confused about what I can eat?

I know not to eat bread, pasta, rice, and other grainy stuff. But the allowed foods list doesn't say anything about fruits or stuff like peanut er. I don't understand the whole "net carb" thing. What about yogurt?I usually eat a lot of fruit on a daily basis, like strawberries, bananas, and gfruit. Are these foods ok? Any put you could give or answers to the foods listed would be so helpful. Thanks!