[Forum] Problem Upgrading 3.8.5 to 4.0.3

[jgrubermandfw]

I'm receiving this page:
I just installed 3.8.5 because I'm trying to make sure I can do a successful upgrade from 3.8.5 to 4.0.3 before I do it on my live site... good thing I tested first, right?

I went to forums/install/upgrade.php and it redirected me to forums/install/upgrade_360.php

vBulletin 4.0 Upgrade System
(Please be patient as some parts may take some time)

XML File Versions:

vbulletin-style.xml
vbulletin-settings.xml
vbulletin-language.xml
vbulletin-adminhelp.xml

4.0.3
4.0.3
4.0.3
4.0.3

Your vBulletin version does not appear to match with the version for which this script was created (version 3.6.0 Release Candidate 3).
Please ensure that you are attempting to run the correct script.
If you are sure this is the script you would like to run,

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[Lynne]

Did you make sure to enter the correct prefix for your tables in the config.php file?