Forum Moderators: coopster
Be sure to read Marcia`s WebmasterWorld Welcome and Guide to the Basics [webmasterworld.com] post.
Have a look at this thread Google not listing dynamic pages with long strings? [webmasterworld.com] for reasons why to eliminate your query strings.
You probably keep your house or appartment closed to the general public and make it accessable only by a public interface, i.e. the door. The same might be a good idea for your website as well. It is not hard to do and you may change the inner workings of your site whenever you want without any negative aspects on the outside.
Andreas