Well congratualations, Dumerils make great pet snakes.
First off , I would keep them seperated( ball & Dume) I have had some canabalistic dumes, also the size of the Dumeril now is important to know they will grow to be 7-8 feet in length. For more info you might want to get a book from the pet store on husbandry of boas.
I would not allow the temperatures to reach over 90' and no lower than 70', always have clean water available at all times, they like hide boxes .
this is at least the best to keep it alive, you might want more info so I'm sure if you wait long enough it will come.
Good luck and enjoy your new snake.
Nick