i forgot my z8games ID !

as the title says, i forgot my z8games ID. Now, all i can remember is my account in CF. So i can't log in to the website to join the clan. Can moderator or GM helps me find the z8games ID ? thank you very much ^_^.
oh here is my account in CF: thiencuong2505
yahoo messenger (if you need): KeiArataItsuki@yahoo.com