Hi Survivor,
Oh! I see you brought your message over here to this half of the board before I finished my post over there...Maybe we caught each other's brainwaves

.
Again I will express sympathies for the death of your father. When I read your note, I see "unfinished business". Isn't that a dreadful term? But there it is. Of course you have a lot of resentment for the way you have been treated...I understand that sense of being betrayed, abandoned, because you were alone, outcast in your own family.
Where do you go from here? My suggestion is, wherever you go, go slow. Your father's death is going to create a "vacuum" in your family and it takes time for everyone to adjust.
I read recently (and am discovering this is true for me), that abused people often feel more angry at non-abusers in the family for not protecting them than they do at the abuser. Often, consciously or unconsciously, they were protecting themselves. And can you blame them for wanting to avoid the pain you suffered? (well, yes, as a matter of fact, maybe we can!

).
Ask yourself what you want. Do you want to punish your sister? Do you want to "start over" with this new perspective? You may need to express things like resentment, anger, "I
told you!" etc., in a journal and to others (like this board) so you can get it off your chest. This is a real need. Your sister may not be an appropriate audience for this because she is processing her own losses too. She (and apparently others) are just now taking it all in.
Then, if you can find a way to express your feelings and desires without inducing guilt in your sister, you might find a way through to better understanding of each other. We can't rewind the tape, but this moment seems like an opportunity for a new start.
Peace, Seeker
PS. There is a post about forgiveness which I'll try to bring up to the top. It surprised me when I read it and found it helpful.