[Stepper Motor Circuit]

My friend needs to find a circuit for a stepper motor and would like to know if any one here has one. Thank you. Jazcannon.
(Unipolar Stepper Motor)
(Please move fast - or as fast as u can - cheers :-)
Thankyou. :-)

[Keys finder circuit]

;D I am building this circuit as a project and I would really appreciate it if you could tell me which piezoelectric buzzer would be used. I have all of the other parts but this one is really annoying me. Thank you very much. Jazcannon. ;D