I will change the permissions to 777 and 666 when I get some time. But if that is what is needed, why doesn't the install guide reflect that?
Step 5 of the upgrade guide @ https://www.ubbcentral.com/doc_upgrade7.php
"Verify that permissions on any newly uploaded files are correct for your server platform. Please review the full installation instructions for a reminder on necessary permissions."
"full install instructions" has a clickable link to: https://www.ubbcentral.com/doc_install.php