To start: this is an awesome plugin, i luv it!
I spent some time on the forums and it is actually really easy to use. I (or rather my father) have been looking for something like this for quite some time.
My problem is: how do i specify the opening 'ancestor' or post. i filled in most of the people i know before i show my father how to work it. My grandfather had 5 kids and i would like him to be the 'openig page' top of the tree, but it keeps on using my dad's sister as a opening page. As soon as I remove a few of her kids, it used my grandfather again as a opening page. Is there a magic number? or is there something like a 'sticky' feature i can use to specify the opening ancestor.