Nancielle,
Hope your new kitty is settling in. I wound up buying Dr. Esley's Cat Attract kitty litter for one of my litter finicky kitties. Now I use "precious cat" (also a Dr. Esley product) - both of which were recommended on some other thread here on TE. There's also a bottle of the attract herb stuff you can sprinkle on your existing litter.

Maybe as things settle down, your new friend will feel more at home, nice and secure. It didn't take very long for the semi-feral kitty that I adopted to figure out that meals were served regularily, my only problem was that he liked it better outside, and wanted me to join him out there, no matter what the weather.