Okay i'll try to write out a step by step process.
1. Make sure your phone can boot up, if you soft bricked it, read the sticky on how to unbrick it, then root the phone using the instructions in the stickies.
2. Download and instal this apk to your phone:
https://drive.google.com/file/d/0By1SxJY5FEvyNXNHenc2ZGY5LU0/edit?usp=sharing
3. Open the app and apply the custom recovery.
4. Press the REBOOT button which will bring you into recovery mode.
5. Wipe data and do a factory reset in the recovery.
6. Select install from SD and select the ROM.zip file on your phone.
7. Let it flash, then reboot back into your phone regularly.
8. If you can't get past the activation process, turn your phone off, take the battery and SIM out and put them back in then restart the phone.
9. Activate your SIM, log into Google, etc.....Setup Wizard stuff.
10. Let your phone sit and update all your Google Play apps, including the Google Apps.
11. Restart the phone and you should be good to go!