To upgrade vBSEO version one to perform below mentioned steps:
1. Download the latest version of vBSEO in zip file by login to your vBulletin Member’s Area.
2. Take the full backup including database of your vBulletin site through web hosting control panel.
3. Disable the board by login to vBulletin admin panel.
4. Backup vbseo-all.xml from the ./vbseocp.php file.
5. Upload the new vB SEO product to your AdminCP
6. Upload all the files included in the ./upload folder including .htaccess file.
7. Go to Manage Products from vbulletin admin panel.
8. Import the latest XML file of VBSEO.
9. Import current vbseo-all.xml settings which you have backed up in step (4).
10. Enable the board.