The following tutorial explains how you can migrate your WordPress site from BlueHost to InMotion Hosting. You will require that WordPress is installed with BoldGrid on both the source and destination locations. The BoldGrid Backup plugin must also be loaded on each site. In essence, you are making a backup of the WordPress site at BlueHost, and then restoring that backup file at the new InMotion Hosting location.
Publisher: InMotion Hosting
You can watch this video also at the source.