We believe in continuing revelation, that God still speaks as he did in Old Testament times. Every person has the right and power to receive individual revelation for their lives via the promptings of the Holy Ghost. The Prophet, on the other hand - the one man who is ordained to lead the church on earth - speaks the words that God would like us to hear as a church and to the world in general. We sing a hymn in our church that says "come listen to a prophet's voice...and hear the word of God."
If you are yearning to hear the word of God, please tune in this weekend (October 4-5, Noon-2pm and 4-6pm Eastern) to hear the word and will of the Lord. You can listen to or watch the semi-annual General Conference of the church online at the following link: General Conference Online Broadcast. You can also watch it on BYU-tv which is carried by most satellite providers.
One quick example of how hearing the words of a prophet in your home can strengthen your family: This week, as I was preparing lunch for my two hungry kiddies, I was listening to a talk given at the last General Conference. Suddenly, my son perked up, and enthusiastically repeated two lines he had just heard spoken in the talk. He said, "Mommy! Jesus Christ loves you. Jesus Christ knows your name." You will hear simple, joyful truths like these spoken this weekend during general conference. You can also listen to these talks again and again online and use them to help your family gain spiritual insight and strength!
Here are some more links about the revelation and the organization of the church:
"My words...Never Cease"
"Personal Revelation: The teachings and examples of the prophets"