Cognos 10 Installation problem

[lomo_ve]

Hi, I installed cognos 10 BI in Windows 2003, using apache tomcat 7, apache http server 2.17, and everithing ok. When starting the cognos service, it gets everything green, but when getting to internet explorer and putting localhost:80/ibmcognos this message appears:

The IBM Cognos gateway is unable to connect to the IBM Cognos BI server. The server may be unavailable or the gateway may not be correctly configured. 

  Try again or contact your administrator.

Anybody can help me?

[SIM0N]

How / in what capacity are you using Tomcat 7?