I have had installed this game succesfully once and uninstalled it now when I try to reinstall I get to the part of the Sistine Cahpel install and get a data 2 error.
Please help me
So the installation stops working at some point? Try cleaning the CD, maybe it'll help.
Take a tissue or some other material that won't scratch the CD and remove dirt from inside to outside. If you see some large scratches on the CD chances are that cleaning won't help, in that case you either have to order a new CD (most companies send them to you if you send in the old one) or bring them to a shop which can remove scratches.