Where did you find them Gina? Have you got a response from the Animal Wildlife rescue center?
I google some links for your joeys:

An excerpt:
Sugar gliders in the wild feed on eucalyptus gum, sap, insects, nectar, and honeydew (an excretory product of nectar eating insects).
They will also eat bird eggs, lizards, small birds and other small prey items. This diet is pretty difficult to replicate in captivity. So a variety have food have been fed, in an attempt to somewhat mimic their natural intake and to see what makes them thrive in captivity.

A couple links:
Sugar gliders resource centre

Hand fidding your glider

I'm sure there are a lot more.Good look!