Pastlives,
Pluto in the 4th house indicates transformation of self through the family. And having someone else's Pluto in your 4th house would indicate that that person can be an agent of this.
What I am about to say is no reflection on your questions or you, but what I would suggest that you do if you do not have a basic astrology book is to get one, and learn the principles of each planet, sign, house and aspect. Then what you can do is to take the basic principles of each of the energies involved, and figure it out for yourself.
That is what I do in 95% of my answers - I use basic principles and let my intuition kick in. And the real point is that you will be learning what astology is all about, which you seem to have some talent to do.
Let's do it this way the next time you ask a question about something like this - why don't you ask the question, and give what you think the answer should be?
Thanks
Dave