psycological parents rights

I live in the state of oregon with my grandson whom is three years old. i have lived her for six months and presently do not have any legal status for raising this child. the child has lived with me since his birth. His mom has lived with me on and off since his birth but has not engaged in actively raising him.

When the said child was 18 months old the parents due to an ongoing battle about adoption and child support went through a court litagation in the state of california where the child was born. The lawyer representing my daughter was to move to a different city in california and encouraged my daughter to sign a legal document awarding joint physical cusotdy and joint legal custody to dad. the agreement was also that dad did not pay any child support.

the agreement stated that the parents shared time 50/50 equally. This lasted two weeks and the baby was back with me full time.

dad visited the baby infrequently for a few hours at a time. his is driven by his parents obsessive desire to raise their grandchild. dad has disclosed to myself and others that his parents were abusive to him as a child.

during the summer of 04 dad gave me permission to move to the state of oregon. once i was here the child then 2 years 6 months disclosed disturbing details of sexual misconduct. he indicated this was done by his other grandmother. when i told this to dad he said it made since and that he did not plan to let him go to his moms during visits he shared with said child.

however during a visit to california in november while dad's wife was at work he took child to his parents. child told me that he and his grandma sat in the hot tub naked.

i have reported this to the authorities in oregon and they were not too interested in doing an investigation since said child was not willing to chat alone with them and since the child was in oregon and the other grandparents were in california.

the agreement that i had with dad was that i could live in oregon until february 1, 2o05. this is only days away.
i have asked dad if i can extend this and have asked him to sign guardianship papers.

i am interested in knowing my legal rights in the state of oregon

does california have ultimate jurisdiction over this child.

is there any legal clause that will give this child the right to continue to live with me his grandma and psychological parent in the state of oregon.

i have filled out probate guardianship and am waiting to see if dad signs this form.

what does the law say about custody in situations like this?

should i file for custody, adoption (contested), guardianship?

is there a law that will help protect this child?

thanks for any information you can give me