Please note that there is an issue with contact imports in iOS6. However, there is a solution for the error that is keeping your contacts from being imported to text messaging and email.
To resolve the issue:
1. Open your device's SETTINGS app.
2. Go to PRIVACY > CONTACTS.
3. Make sure that Vlingo is ON.
Once you have done this, your application should be able to recognize the contacts that you dictate for sending an email or text message. You may need to reboot your device before it takes effect.