How do I fix this mess I've found myself in?

Asked by Alter_Ego (71) January 2nd, 2011 from iPhone

My sisters and I have not been real close in the last 20 years.
Our mother was terminally I’ll and we all came together to care for her. It was amazing and I cherished the reestablishment of our relationship.
Part if the reason for the rift was that it was revealed that our oldest sisters husband abused my other sister, my little brother, and the abused sisters son. The family, for some dysfunctional reason kept this info from my oldest sister, (the wife of the abuser) until it was to late to press charges.
She was pretty pissed (understandably) that everyone seemed to know but her, and doubted that it was true. She is still with the guy.
That dysfunction aside, our sister rationship blossomed while caring for mom.
My oldest sister keeps offering her husband to help move things from moms house to the other sisters house. It is very akward.
I took it upon myself to tell my sister it would not be a good idea for her to offer anymore.
She is really upset saying that my sister should have talked to HER not me. I tried to explain that I was the one who asked how she felt but now she is all pissed. Moms funeral is I a week and we really don’t need family drama. The innocent victim sister, who was trying to keep her mouth shut REALLY does not need the added stress right now. I wish I would have kept my big mouth shut.
Is there anything I can do or will speaking anymore just make matters worse?