Major spoilers ahead.

I think I had that whole episode figured.

Kate really did kill her father. The horse is like Sawyer's hog back in season one. During that episode he was tormented by that boar and at the same time he was having flashbacks from when he killed the man he thought was his father. During that episode Locke tells him of how his sister fell off the monkey bars, broke her neck and died. His mother was very sad about it all so that very same day a dog came to the door and became Locke's mother's best friend. Then about a year later when Locke's mother wasn't sad anymore the dog left. So back on the island Sawyer meets up with the boar and yet he dosn't shoot it. The dog was Locke's sister, the boar was the man Sawyer killed. And in this last episode the horse was Kate's father.

On the hatch...I'm a bit chilled. It was awesome how Eko found the book with the missing piece of the Orientation tape. Was his story about how they found the Old Testment true? Well anyway I think what we found out, "The computer cannot be used for communication," will be quite important because of the fact that Dr. Hanso said, "Because if it is used for communication, we may have another incident."

Now on Michael messin with the computer I'm pretty frieked out. First of all he stopped the clock..! And second of all he used the computer for communication because he talked to...WALT!!