I just installed FreiChatX.v.4.6.3.zip and was successful to a point

I do see the user window in the browser, and I can change the user or template settings in the administrator panel, but if I change the powered by (on off) there is no change and also there are no users even when there are users online. I have two machines side by side to test connection. Neither one sees the other. If I try to look at the arg.php file via the http://~freichat/arg.php I get :

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

yet I can look at the file once I ftp it and I can see the settings and they look fine. Permissions on the arg.php and the index.php are ok too.

I have set permissions of arg.php to 644

Also I am running JCB and it shows JCB when I look at the arg.php once I ftp it.

I am also running firebug and see no obvious problems there either but dont know exactly what I am looking for. Also, I have read other posts about a log file. Where would that be?

Thanks

Check your web server log files, it is a server generated error.
set all PHP file permissions to 755.
the log file should be generated in the freichat directory itself.