You need to test your site thoroughly. All newly constructed websites contain unseen glitches -- especially those created by inexperienced developers.
Here's how to conduct your first few usability trials. Ask to meet with a friend who is an Internet novice. Seat him in front of a computer, stand near him, and direct him to your site. Tell him that you'd like him to talk out loud to you about what he is thinking and the questions that occur to him as he pokes around your site. Explain to him that you won't be able to answer any questions at this time, but you want to hear them just the same. Now watch and take copious notes. Observe what confuses him. See where he gets hung up. Listen to his questions.
Pay particular attention to testing the landing page(s).

After 10 or 15 minutes of this exercise, you'll detect plenty of small changes to make. You'll also learn how effective your navigation system is. If you have built your site with SSIs navigation system changes will require you to modify only one or two of the boilerplate SSI files. Upload the changes and the whole site will be easier to navigate.

To discover 85% of the usability problems on your site, repeat the usability exercise a total of five times, each time, of course, with a different person who can look at your site through completely new eyes. For more information on website usability, consult Dr. Jakob Nielsen's UseIt.com site (www.useit.com) and subscribe to his free AlertBox e-zine.

What's the design decision here? Submit your site to simple usability testing with five subjects. Your site will be much better as a result. List your five recruits to be usability testers for your site when you get near completion of your project.