Update
Updating your installation of vbDrupal is identical to updating a normal Drupal installation.
After copying the new files, simply op the vbDrupal update script: update.php, and follow the on screen instructions.
It is adviced to turn off vBulletin and vbDrupal during updating.
Upgrading from a previous vbDrupal generation
vbDrupal 4.7
You can simply copy the new files and run the update script.