If i play Mind Control onmy opponents creature and it is equiped with Sword of Vengeance do i get the Sword of Vengeance and can i move Sword of Vengeance to one of my creatures?
You don't get the sword; it stays equipping the creature, but you don't gain control of it. That means:
* The creature still has +2/+0 and all those abilities.* On his turn, your opponent can move the sword to another of his creatures (and you can't do so).