Suite Upgrade from (3.5.3) to 4.0.3 Fails (can't get past first step)
 

Do I need to first upgrade to an earlier version or something? I get this error every time:

Your vBulletin (3.5.3) does not appear to be running the version that was downloaded (4.0.3).

When I attempt to move forward, I get a SQL error about missing tables, likely because the upgrade script never ran and I still have 3.5.3's tables. Please let me know if there's something I need to do!