We're no experts on Emerald Swifts, but here are some resources that might help:

http://members.dencity.com/Herp02/swiften.html

They seem to have had success with babies:

http://members.dencity.com/Herp02/elliot_jadeen.html and their care sheet is the most accurate I've seen

Check out the lizard forums on kingsnake.com - a bit down the page is a gray search box that will let you search the lizard forums for emerald swifts -- lots of info there. Pay special attention to info from someone named "Ingo", who seems to be very knowledgable. Here's the most information I was ever able to find about raising babies, from one of the posts there:

Posted by Ingo on January 03, 2000 at 02:23:45: 
In Reply to: Baby emerald swifts, what do I do??? posted by Crystal R on January 02, 2000 at 20:17:17: 

: They are everything but easy: A Hot basking spot and a moist cool area at roomt temp are recommended. Heavy misting in the morning is a MUST and the temps should drop significantly at night (lower 70s or colder). High light intensity keeps them agile. They donīt eat too much but need LOTS of food in the cage, since they are at early age more or less sit and wait predators. So wingless fruit flies are a good starter food. All food should be dusted with a good Ca/Vit supplement. 
For short: Hot at daytime with a moist cool corner
Cool and moist at night
Very moist in the morning
Lots and lots of food items-although only very few will be eaten 

It is true that they are very difficult -- ours did not survive. I hope you have better luck!