My step daughter is getting married.Obviously my husband will give her away.Her mother has also remarried.My husband and his ex wife hate the sight of each other,but will try for the sake of their daughter.. Where is the correct place in church for me,as a step mother to sit... in connection to my husbands ex and husband.I won't be with my husband because he'll be with his daughter..?

Your husband will still come and sit down with the rest of the family, right?

"Rules" for this sort of thing don't really apply in my opinion. If it would be easier, you and dad could sit on one side, mom and husband could sit on the other.
Personally, I think mom, husband, dad, and you could all sit in the first pew together. OR Mom and husband in pew #1, Dad and you in pew #2.

(When the bride is given away, dad will sit down as quickly as possible, probably on the end of the 1st -or 2nd- pew)

Hmmm... what about sitting in the pew with your in-laws, and then having your husband join you after escorting his daughter. Assuming, of course, that the in-laws are attending and in the picture. This is where I plan to sit at the wedding of my Stepson. We have a similar situation with my husband and the mother of the groom - we are just thinking it's best to have separate pews so that all of us can enjoy the occasion. Otherwise, the energy expended to keep up an obviously strained charade in the same pew would make things difficult. We don't know how many pews the mother of groom will require for her family, we just know that we will be behind them, and that's fine with us. Everyone knows he's the father, it doesn't matter where he sits, and I think the view is a little better further back! Best of luck to you.

My step daughter is getting married.Obviously my husband will give her away.Her mother has also remarried.My husband and his ex wife hate the sight of each other,but will try for the sake of their daughter..Where is the correct place in church for me,as a step mother to sit.......in connection to my husbands ex and husband.I won't be with my husband because he'll be with his daughter...???
Well when I got married my step dad sat on my side... just a little tip