Here are some steps to fixing an issue I ran into with Window 7 and Reporting Services 2008.  The problem was when I attempted to access the Report Server or Report Manager from my browser I received the error HTTP 404 Not Found.  I didn’t find a direct answer on the web for this but I did see a lot of people being directed to change the port used to 8080 without any explanation why.  I don’t think this is an issue exclusive to Windows 7 but it happened immediately after installing it (maybe someone could shed some light on this part for me).  I didn’t have this same problem while using Vista.  I did the following steps to solve the problem.

1.  Open Reporting Services Configuration Manager

2.  Changed the Web Service URL to use TCP Port 8080 instead of the default 80.

3.  Changed the Report Manager URL Advanced properties to use TCP Port 8080 instead of the default 80.

4.  Restarted the service and I was good to go.

I’m not sure why this fixed the problem maybe someone can leave me a comment to help me out on that.