With the newest vBulletin files uploaded to your web server, you are now ready to run the upgrade script.
This is the simple part of the upgrade, so it's all plain sailing from here.
To proceed with the upgrade, you'll need your vBulletin Customer Number.
The installation wizard will then begin.
This screen confirms that the files have been properly uploaded, and we are ready to begin, so click on the Next Step button to continue.
Step 1 ...