You can go to your father's profile. Go to the 'edit' screen. Scroll down the right side until you see Children > add or edit children. Click on that and it will take you to a screen that says Edit Family of (your father's name). Add Morton-8400 (you) into the top box under A. Click "Go" and you should be added.
You can do all of this in the reverse by going to your profile, clicking on father, and putting his profile number in the box and pressing 'Go'
Hope this helps
