AppTapp Problem

Hi i just restored my iPhone to firmwear 1.0.2 threw iTunes. I followed the basic tutorial of jailbreaking ur iPhone. So I restore then closed itunes and itunes helper then i tried installing AppTapp but it wont do anything it just sits there for hrs. When i look into details on the apptapp installer it doesnt get past execute iphonecomm something. so i am having trouble installing apptapp to unlock my phone. can anyone help me please