Access panel with a valid domain (using valid IP on the Internet)

[kfot]

Thanks for the tip about schizophrenia, I'll take that into consideration ...

But with respect to the panel ispcp, anyone have any tips?
I made the changes "tests" mentioned above because if I install the OS and install the Debian Squeeze ispcp as the manual says it simply does not work but displays the following message when accessing cp.domain.com.br:

not Found
The requested URL / was not found on this server.
Apache/2.2.16 (Debian) Server at Port 80 http://www.domain.com.br

The tests I made up, what is called schizophrenia only to show that:

1 - The domain name points to the server.
2 - Apache was not configured correctly in the installation ispcp.

My question is:

Only that I'm having problems installing these ispcp? Because everyone says that install by following the manual and it works but for me it's not working.

Any other suggestions other than the friend's up?