If you're not a shrimp lover, just omit it for a tasty Thai Chicken.
Look for Thai peanut sauce mix in the ethnic-foods section of your grocery store. Bone-in chicken is used because the bones help keep the chicken from shredding during the long cooking time.
Reduced-fat ("lite") coconut milk can be used in place of the regular coconut milk.
For a change of pace, serve over cooked jasmine rice.