Thanks for you help.
I was using CM11 and wanted to switch to PA 4.2.2. I did a nandroid backup and did a factory reset and installed PA 4.2.2. I wanted to restore my SMS/MMS, and copied the mmssms.db from the backup and put it in the com.android.telephony directory. I set the permission to 600 and owner to radio. Every time I open my sms app, it force closes. I looked in the catlog, I saw an error for sqlite, cannot downgrade database from 60 to 57. Can someone tell me what that means and how to get around it?