Help keeping this poinsettia alive?

[tinpanalley]

We've been trying to keep this Poinsettia alive and it's been going really well but in the past week the leaves have curled a bit and drooping. Until about a week ago it was fine. Only change was carefully moving to a bigger pot and watering that new soil. Anything more I can tell you or give you as info to help us save this plant before it is no longer salvageable? Or maybe some trick someone knows for reviving these guys? Thanks so much for any help!!