Your device is connected with your Google account.
Your device has access to the internet.
If Android Lost is not working out for you and you’re phone is still running an older version of Android (2.0 up to 2.3) you could give Plan B from Lockout a try. Install the app directly from the Play Store (Link) to your device and, if successful, Plan B will send your device’s location to your Gmail address. It will send you a mail every 10 minutes with the current location. You can also use any other phone to send an SMS with “locate” to your phone to get the location via mail.
As already mentioned, Plan B only works with devices on Android 2.0-2.3, so it won’t work with most devices. Also, the app hasn’t been updated in a while, so I cannot guarantee that it will work.