Cannot link a device and game center issue

I have a game played on an iPad 1. When I tried to link the game to a new iPad 2 it says that it is not linked to a Game Center. Once I'm logged in to the Game Center, it asks me to load a townhall 2, while the game on iPad 1 is on townhall 7. I click cancel.

Now, when I go to play the game on iPad 1 it asks me the same and I click cancel to not loose the progress.

All I want to do is to transfer the game from iPad 1 to the new iPad 2 and continue from there. The iPad 1 will be given to a friend of mine after a reset and deletion of all it's content.

Can you please help me out here?