I don't use freeze dried insects, sorry. Generally BD's like to chase their prey and don't see it as food unless it's moving. I know there are BD pellets and things like that you can use that you add water too... is that what you're referring to with dehydrated food?
Yes. Here's where I found dehydrated foods: http://www.herpsupplies.com/product.cfm?groupid=17691&id=SSF71916
http://www.herpsupplies.com/product.cfm?groupid=18999&id=SRZ09626