Trouble installing

Weird… Try uploading everything again. Did you do it to the root of your domain?

I have uploaded it twice and it is in the root of my domain. The same results each time.

and what happens if you try to open any other .php files — like a phpinfo.php file?

add this to your .htaccess:

AddHandler application/x-httpd-php .html .htm .php

I have no dea where either of those files are or how to add that.

ok, then have the person who manages the server do it.

That is not going to happen