The breeder should at least get the hatchling to take 3-5 meals to make sure it is ok, before letting you bring it home. In the meantime, a good place to start is the caresheet:
http://ball-pythons.net/forums/showt...ius)-Caresheet
And if you want to set it up in a tub, here is a thread that can help out as well:
http://ball-pythons.net/forums/showt...e-Basics-*DUW*
*edit* I see that you posted while I was making my reply.