only my daughter's I485 has been updated several times

Our I485 (EB1) were submitted to VSC in July 2006 and the cases were transfered to the Texas Service Center on March 15, 2007. My daughter\'s case was updated several times last week and this week. But nothing happened to my wife\'s case and my case. I am a primary applicant. Were there cases that chidren got GC before their parents.

Any comments will be appreciated.