I need some help in locating the Dragonstone. I get to the inner sanctum with the fire hearth in the center, but I can't locate the stone. Am I in the wrong place?? Thanks.

Yes, you're in the wrong place. I don't remember no stinking hearth.

If you're in Bleak Falls Barrow, once you get the Word of Power you'll be attacked by the person holding the stone.

Wrong place, broseph.

I don't think I had the word of power yet. Since leaving Bleak Barrows I've gotten 2 words of power. 3 are needed or do I have enough?

You need one in specific. Not just any one. You need the one from Bleak Falls Barrow.

Do not confuse the "Word of Power" with the 3 words that make up a full "shout", of which there are 20 shouts(I believe) in the game. There are words of frost and many others. Bleak Falls Barrow is the place that a "Word of Power" is found in a large cavern on a wall behind a crypt. Once you absorb the word, you will be attacked and the stone is on the body---as stated. Good luck.