It may be normal basking behavior. Chameleons normally flatten out and lean (as MellissaB said) to maximize surface area. Mine does so every day. Like others said, double check your temp at the basking sight. 98 is too warm if that's what it is.
He's eating! That's great! I coaxed mine to hand feed by first holding the cup with the crickets for in front of him. He got used to taking food from the cup in my hand, and became so used to my hand that he'll now take food from my fingers or palm.
His colors will change based on his temperature and his mood. You'll learn what the different colors indicate as you observe him. My panther tends to get darker when he's angry or scared or basking, and much lighter and brighter when he's traveling, feeding and sleeping.
That Reptisun 5.0 should be good! I think covering at least the side nearest the TV at night is a good idea - my cham doesn't go to sleep if it's bright in the room.
I looked at your album - cute little guy! I do not have experience with Jackson's, but I think he looks okay, probably just a bit stressed from his adventure today :) Are there live plants and places for him to hide in the cage so he feels safe?
Shipping is pretty stressful. Add to that a completely new surrounding - of course he's stressed, and probably tired too. My panther often goes to his sleeping spot as early as 6:00 and settles down. Give him some time to get used to his surroundings and recover from the adventure of being...
I'd resist the urge to take him out, take him outside, or otherwise disturb him for at least a few days. Let him have a few days of quiet to explore the cage and get used to his surroundings - this is a big change for him, and pretty stressful. If you want him to settle in and start eating, I'd...
What Kath said :) Some eat right off the bat, others take a few days to settle in. Keep him hydrated, he'll eat once he gets comfortable with his new home. Relax and just give him some quiet time :)
Dandelions are good- the leaves and flowers are nutritious. I don't know if your cham will eat them; my Iguana and Bearded Dragon love them. Just make sure they have not been sprayed with insecticides or fertilizers!
Schefflera like plenty of indirect light, warmth and humidity. Make sure it's kept moist but not wet, and repot it if it's rootbound. You can be prune it to encourage a more full plant. An underwatered, cold schefflera will begin to drop leaves quickly. If all or most of the leaves have dropped...