Is this the centerpoint station that i can catch the tre

There's a TRE Link bus that will connect you to centerport I'm not sure where you pick it up though

It's all depends on where you are going to from the airport. But there is a train station

It depends on where you are trying to go once you get to the airport.

So the orange line to dfw does not connect with tre at dfw

It is not. That would be Centreport Station, about 5 miles south. You would need to take a bus from your terminal to the Remote South Parking lot, then another from there to Centreport.