Failed to update/install latest ISPConfig, Apache redirect

Hello, I have some problems with this control panel to see if you can help me:

- I installed ISPConfig 3.0.4.3.tar.gz, all great but to upgrade to the latest version, I get the Apache assistant, for that matter? If you do not update the control panel works correctly me.

- I want to use Nginx, Apache httpd stop and run Nginx, because I do not load the page, continually fails em, I do something else?

I'm doing wrong? please help

Thanks to all!

 

anyone?

 

I illustrate

 

thanks for your answer, I stopped apache and nginx autostart I created .. but now neither comes nor refresh the page, firefox error that does not exist

 

/var/log/nginx/

access.log and nginx.log empty

syslog can't find it

thanks for all!