rgb led and temperature help

Hello, I'm new to Arduino I was wondering if anyone has tips on how to connect a RGB led with a waterproof DS18B20 temperature sensor? I know how the led works and I've downloaded OneWire and DallasTemperature, but I don't know where to plug in the wires of the sensor on the breadboard and how to make the computer recognize it? any advice would be great, thanks!

one wire tutorial.

Specifically for the DS18B20, this tutorial is excellent.