Ok I have recently installed ubuntu server 7.10 with LAMP by basically following the walk through at ...(The link is to a legitimate walk through site, but it is being blocked, which is pretty frusterating becuase I helps anyone trying to help me with this problem know what steps I took to install apache and PHP

)
Everything worked without error and I am able to run Webmin and see all of the information about the apache server and PHP.
So, I tried to test PHP by creating a file that contained the following code in the /var/www folder.
When I loaded the page it just displayed the code as text.
After searching a bit I came across a post on these forums that recommended trying
PHP Code:
<?php
header( "Content-Type: text/html" );
phpinfo();
?>
After making the above change to the file, it worked. THe post mentioned something about changing the content type in the apache config, but did not give any instruction on how.
There are many config files accessible through webmin, and I have tried changing many without success. I also tried to add a MIME type text/html associated with .php but that did not work either.
I have done lots of searching, but I mostly get information about changing the content type within the php file rather than changing it at the apache level.
Any help is greatly appreciated.