fern...
I don't have stepchildren....yet. In the short time we have dated, my GF's 8 yr old son has done some things that bother me. I have been plain about that, both with him and with her. I am very lucky that the gal I am dating (and in a very serious relationship) is OK with me correcting her son. She and I communicate very well, and for that we are both lucky. Poster theBorg is right.....As long as the parents (or in our case the couple) present a united front and don't let the kids get a wedge in, the kids have to back down and fly right. In our case, her son does. He is a good kid...just being a kid.
As for your situation...I agree with Jamie and crapola.....get your husband in line. If you cannot, the marriage will suck at best, crumble at worst.
My personal experience in such matters is limited to the above comment...and my own experience as a kid that liked to play mom against dad......
And my relationship is not perfect by any means, I stepped in some serious shit today. Our first real disagreement. (Not the first stupid thing I have done or said)...... Flowers sent to work tomorrow kind of disagreement. () Neither of us are yellers or fighters...I was dead wrong in what I did and I knew it. I knew I had crossed a boundary. It was a test and we made it through because we had established a foundation of communication. Fern... If you can talk with your husband and get you and his ducks in a row, the kids will follow as Jamie said.
Snakes ()