Hi,

Does anyone can help in where to find a store or someone who can unlock Iphone 4S ?

Thx,
007 Cell at Bourj Hammoud before Hawa Chicken
Nope, there is no carrier unlock out yet for the iPhone 4s from what I know. there isn't even a jailbreak which usually comes first. and after that the dev teams start working on a carrier unlock.
I think you can use the gevey sim or turbosim tho. Good luck
As ezzet said, there is no jailbreak for the 4S, so you can not unlock it yet.