Please someone help me I'm going mad!

I just cant get the server to start on InstantRails application, Ihave started RedBrick and it tells me that is has stated successfully.

I have stopped ISS running and apache is off aswell.

when I go to http://localhost/3000 if keep getting the message

Not Found
The requested URL /3000 was not found on this server.

Apache/1.3.33 Server at localhost Port 80

What is going on here, this was working fine yesterday

My firewall is also switched off aswell.

I've been at this for 5 hours now, what a waste of time!!!