Here is the answer Victor Hu
Victor, thanks a lot for your quick reply but I figured it out(Selective Service) from one of the INS sites. I live in Central Arkansas which comes under Texas Service Center, and my real local office is in a place called Ft. Smith 180 miles from where I live. But Memphis is only 150 miles away from I live. So all the INS letters and even figer prinitng for me and all my friends who applied for 485 came from Memphis. But still the INS site says we are under Ft.Smith. I do not know the deal,but the letter for interview came from FT.Smith but see the funny part I\'m supposed to go to Memphis.
The clue is I went to Memphis INS last week and asked the INS officer about my status she said their is no info here about you. I have to talk to TCS.
I think your interview will come in couple of weeks, and I do suggest you to walk into Atlanta office and inquire.