D.R.
My husband and I have gone thru something on a similar basis. His father was living w/ a lady who started out as a nice person. She and I had a disagreement because she was trying to pull rank on me. (I was active duty enlisted and she was the widow of an officer) I politely explained that she did not wear her husbands rank and had no authority over me. Needless to say, I have a temper and when she became irate, I went off. So the first time they saw our daughter was when she was about 2yrs. The ONLY reason they met her was b/c they were in town to bail Randy's sister out b/c she was losing her kids to CPS for neglect. We took the kids in through the foster home program. We were able to keep the kids for about 5 months when I got orders to another part of the country. We could not take the kids out of that states program, so they had to move to another home. She felt that we were abandoning the kids and that we were in the wrong. At that point they cut us off almost completely other that Randy managing to occasionally catching his dad on the phone/email. Then, when our son was born. They never even acknowledged his birth. We sent them several emails to let them know about him, but they never replied. We didn't know if they even cared until X-mas when they sent his gifts. Now we don't even get gifts for the kids. It really hurts not being able to see/talk his dad, but she has him so "protected" from us (including Randy's sister) that we have just accepted the fact that they will have to make the first step because we have done everything we could to make peace. You may have to do that also. Keep in touch with your dad and see if he can help you to stay in contact with your sisters. As for your step-mom, I agree that you should just give her the space she obviously wants/needs and accept the fact that you may never be able to get along with her. I hope that things get better for you and you get to see your dad/sisters more often.
Debi :-)