Thread:Project:Support desk/Page cannot be found, Error 404

Mediawiki 1.16.0, MySql 5.0.24 and PHP 5.3.3 windows server 2003 and IIS 6

I have installed my wiki on the default web site and everything went smooth, but I moved the website to a different port and now my Main Page will not display. I did set it up so it would still listen to the old port. I keep getting a Page cannot be found with a http 404 error. Why can I not get to the main page anymore.