I get two receipts

I juse ccheck my mailbox, I get two letters, one for my wife I797, another is my daughtor I485, both received date: 7/3/07, notice date:8/13/07. My wife and me don't get ourself I485. Another, my I140 (TSC)got approved and send notice on 8/13/07, I also don't get notice letter, is it normal? I remember if I140 in TSC, I485 will trasfer to TSC, by my case, they don't trasfer my case. Good luck s to all.