I'm sorry, I cant ever look at the cards when I post and have to go by memory, and this card is not on the internet yet so.
Edit:
Ok, so I found this post in a old thread and Arcanus put:If you cast a Mind Control on a creature, you now become the creature's controller, instead of the player who cast the creature. So sorry about what I said earlier, and yes, I would have to assume you would pay upkeep, and any other effects for having that creature. (like Mordok's obelisk for example)