o.k, thanks -- and I went back and found your original posts to try and catch up on everything.
First, I'm no attorney -- just another parent here who has dealt with some of this stuff. So many parents and families out there, so many different situations, but it's all about doing whats right for the children.
In dad's case, there was a really good reason for the child to come stay with dad -- mom's use of drugs.
Personally, I would have run to the court THEN and filed a motion (request) to the court asking that the son's primary residence be changed to the father.
At the same time, I would have done all that dad has done to this point (started a dialog, gone to mediation,), but nothing is going to happen unless:
1. Mom agrees.
2. The court orders it.
IMHO, Mom is stalling.....
IMHO, if dad still feels the same way and can prove why he has this position, then dad needs to also start court action.
Right now the answer to your question is that you have to go by the most recent court order as to where the child lives and stuff.