vtvette,
I can't say which file you would need to run, but be careful if you are trying to restore contact from Sense to Vanilla. I'm not sure they would be the same. Your best bet is to make sure that you contacts are in Google, and not Phone. If they are phone, you can export them to CSV and import them into your Google contacts. You can also just import into contacts each time if you don't want to Google them.
Steve in CT