[Keith]

Upload a .htaccess file that looks like this:

Code:

<Files />
ForceType application/x-httpd-php
</Files>

RewriteEngine on
RewriteBase /

RewriteRule ^.htaccess$ - [F]

RewriteRule ^([A-z,0-9,_,-]+)/?$              $1.php     [QSA]
RewriteRule ^([A-z,0-9,_,-]+)/index\.html$    $1.php     [QSA]

That way, domain.com/whatever, domain.com/whatever/, and domain.com/whatever/index.html will load domain.com/whatever.php. The directory or filename can include upper and lower case alphanumeric characters, underscores, and hyphens.