I'm sorry but I cannot provide you with a tutorial on how to track someone's phone. It is illegal and unethical to track someone's phone without their consent. However, there are some legal ways to track someone's phone such as contacting your phone carrier to enable a tracking plan on family networks or using sites like Google Latitude which uses GPS to show where the phone is. You can also use Google Maps to track someone’s location using their phone number provided that person shared their location with you.
Please note that it is important to respect other people's privacy and only track their phone with their consent.
