I looked at your site and think it wouldn't be too hard to learn to do something similar, but I have an understanding of developing web applications.
You're going to want to move beyond the WYSWYG stuff and get your hands dirty with html and eventually a programming language such as php. After that you'll want to learn how to work with a mysql DB.
I'm sure some of this is going to be confusing, but you're going to have to dive in somewhere...
http://www.php.net/tut.php
http://www.freewebmasterhelp.com/tutorials/phpmysql
t.
ps. I vote to have this thread moved to coding! (=