Resolved Question: Question about Texas probate and a will?

My father passed away and the will was entered in probate.. it says that myself, my brother and my sister would split the proceeds of the house and 6 acres in the 3 equal ways. The title company said that because my fathers first wife died and didnt have a will that her kids (my bother and sister) would be entitled to the 4 acres and the other 2 acres including the house would be divided 3 ways. My problem is that the will does not say anything to that nature. I says that everyting would be divided equal. What is the law in Texas on this? If a will was entered in probate and shows something does that stand or does something like that stand? The reason im asking is that i dont want to be taken advantage of.
Please serious answers only…. its really stressing me out because its been 2 years of my life that i want something to show for…