go into your admincp and then go to user fields. Then go into user fields manager. You will see the field ID there. Then just edit that to your needs or put it where you want it to show up.
you will not find it in templates unless you assign it. For better help it is easier to post a link and / or a picture on what you are wanting to do. As you could just add the above code where you want it and it be a link.