UBB.Developers Forums UBB.threads 7 Development How Do I? Welcome Message Missing

http://www.allenonline.com/forum/ubbthreads.php

Hello:
I posted this today at Infopop Threads Forum:

Just had version 6.4.2 installed.
New user signs up and visits My Home for the first time. Message Box shows that they have received a private message and it is unread. Flag is also blinking indicating PM. This should be the welcome message.

When user clicks to access this message, no message is present to read.

How can I fix this please.

Rick Baker was kind enough to resond with this:
It sounds like you are missing your main admin user. You'll want to check to see if you have a user number 2. Run this SQL command:

SELECT U_Username FROM w3t_Users WHERE U_Number='2'

This is way over this newbie's head.

Can you help.