Got back to Aca on Sunday, used mileage on Continental.
The flight from LGA to Houston, was on United, which means you come in at a United Terminal, the flight to Aca was on Conti, which means you have to completely change terminals. The Conti Terminal is on the other side of the Airport, and you have to take the train to the plane.
Don't know if this is the way it's going to be but if you have a tight connection and they schedule it this way you won't make it. It's a long walk to the train. Just a heads up for anyone going that route.