Follow these steps:
1- Download this recovery:
VM670NH_recovery.img
2- Download the ROM:
BACKside-IHO-VM670-02122012.zip
3- Download the gapps (google apps):
gapps-gb-20110828.zip
Note- the recovery is an img file, the ROM and gapps are zip files, do not unzip the zip files, place all files at the root of your sdcard (no inside any folders)
4- Open terminal emulator and type in the following:
Note- this installs a custom recovery so you can install other software, and then boots you into the recovery
Code:
su
flash_image recovery /sdcard/VM670NH_recovery.img
reboot recovery
5- Under backup and restore, choose to backup (it takes from 5-10 minutes)
6- On the main screen wipe cache
7- Under advanced wipe dalvik cache
8- Under mounts, format boot, data, system, and cache
9- Select install zip from sdcard
10- Select the ROM zip file (takes about 3-5 minutes
11- Select the gapps zip file (takes about 45 seconds)
12- Back on the main screen, reboot
Your first boot up after installing the ROM will take a long time, so be patient (5-15 minutes for a full boot). It won't take that long to boot up later, just the first time or anytime you wipe caches in recovery.
Enjoy!