Delay in E-filed AP processing

[vikramark]

Hello,

I had E-Filed AP for me and my family on July 7th, 2008. Still it is showing as pending, On December 16th, 2008, I send a request to USCIS for expedite processing, December 26th I received a letter from USCIS that an officer is assigned to our case but after that there is no change in the status.
Can somebody pls suggest any steps that I should take to get my AP approved?

Thanks in advance

Vikram

[Vagus]

Which service center did you apply? Was it renewal or first time application. My friend got it renewed from texas center in 57 days. Mine also pending for renewal in Nebraska center.

[vikramark]

It is pending with California Service center, this is a AP renewal application