Have you contacted your stake clerk? He is responsible for training you.
The form is found at LCR > Membership > Create Record. At the bottom of the page is the link 'Blank Create Record Form (seven or younger)'. Click it for a blank form. The form can be partially filled out by completing the fields on the page, if you have that information.
JD Lessley
Have you tried finding your answer on the ChurchofJesusChrist.org Help Center or Tech Wiki?