To restore a database you can use the Management console by right clicking on the eTrack database and choosing Tasks Restore Database

From the backup dialog select the From Device radio button and press the Ellipsis (…) button to the right (see below)

2. Click the Add button and browse to the backup file location (selecting it from the browse dialog).
3. Click on OK from the Add dialog.
4. Tick checkbox on the database to restore (will only be one)
5. Press the Options page selector and tick Overwrite the Existing database

Click on OK to restore the database.