Hi EB84280,
Congratulations on your weight loss! It sounds like you are really serious about your weight loss program and that is great.
There are many good, yet simple exercises that you can perform to target the areas you mentioned. For your thighs and hips you can do squats, lunges, leg extensions and adductor and abductor isolation movements. For your stomach area you can so crunches, leg lifts, bicycle crunches, the plank hover exercise, knee ups and oblique crunches. Keep your movements simple and under control. Be sure to pull from the area you are targeting (not your neck) and focus on each repitition.
Keep up the good work and let me know if you have any other questions.
Good Luck,
Paul