I don't know how much help you got already from that tutorial, so I'll just give you a little more info.
For creating tables, I would definitely use something like phpMyAdmin found on
www.phpmyadmin.net . This will allow you to set up your database to accept forms from web pages.
Sending in from forms on a web pages uses a simple INSERT INTO command with the values after that, you can find the syntax for that in the phpMyAdmin help files.
Hope this helps some.
-Cliff