Game Center problem

Hey

I have a problem with my Game Center in my I touch device.

The thing is I had started playing games with an Id in Game Center but later I had to change my Id

So now I have two ids. So achievements which I completed earlier are showed up in my 1st Id while those I completed now are on 2nd id

What I want is my all achievements in my 2nd id.

Game Center (2nd I'd ) shows many games as never played. While I had played them.

Note when I try to complete the missions in temple run (done earlier) then too it does not show up in gc

Pls help me. It seems like puzzle sorry for that. Hope u understood my question