No worries! Most little ones don't want to eat when they first get put somewhere new. They take time to adjust, and this can vary from gecko to gecko. You can try coaxing him to eat by squishing some mealies and putting them by his mouth. But just give it time, I'm sure it'll be eating in a while.
Like Hannah said, I have had alot of success jump-starting an appetite by squishing a cricket or mealworm and rubbing the guts on their mouth. Usually after tasting it they realize they're hungry. If he seems really lethargic (keeps his eyes closed, doesn't move around at all, skin is wrinkly << sign of dehydration) I would try Marcia's slurry.
Aw, I'm so glad the little guy is doing so well. I agree, don't be hesitant to update us! This is a unique case and I'm sure we'd all like to know how things progress .
I never get tired of hearing updates on these little guys! It is great that he is doing well. I hope he keeps it up. Best wishes and keep the updates coming!