Isis topic

I'm currently running the newest Viper XL Rom and am trying to get Isis to run. Following/adapting "showthread.php?t=2642461" I finally got Isis installed, it recognizes the device, but it keeps timing out on the account setup. Question: where can I find the newest official ATT build.prop for Android 4.2.2? I'm wondering if I'm missing a few settings.

Thanks!