Message service

I wrote a book that was published Tuesday, June 28th. It is a fictional story that includes the characters envisioning a message service. I created a website for this service to become a reality. If you see the website, it looks like it's done, but none of the links and instructions really work. I need help making it work real soon. I listed the website address on the back cover of the book and people are going to start going there shortly. Yahoo sitebuilder was the easiest way for me to build a site, but i've gone as far as I can go. I would think someone that knows yahoo sitebuilder very well could complete this in an hour or two. I am the definition of a "Newbe" with big ideas and I need help quick. By the way, I'm not a wealthy, but I'm getting desperate. My "vision" is to make my website work. I used yahoo sitebuilder and have most all the information on the site, including submission forms, and instructions on how it is all SUPPOSED to work. Now I'm now lost as to how to make it all happen. I need help creating accounts for my customers, so they can purchase the service, log in and create/change a personal message and a place where people can "read only" messages from someone using only a password. I need to make all the links work, and create places where messages can be saved, sometimes changed, and then finally read by someone who has been given a special password. These people will most likely read their messages years after they have been written. I am most interested in someone who already has yahoo sitebuilder on their computer and can download my new site and make it all work.