Check out Tim Perdue's article on search engines here...
http://www.phpbuilder.com/columns/tim20000526.php3
He talks about forcing files. BTW, I found out that sometimes you have to use
<Files name_of_file>
ForceType application/x-httpd-php <-- NO "3"
</Files>
Instead of this:
<Files name_of_file>
ForceType application/x-httpd-php3
</Files>
...depending on PHP3 or PHP4.. in my application anyway. Also, this doesn't work unless you use Linux and PHP as mod_php in Apache, and will not work with PHP as CGI.
If you need to find a host you can do this with I can recommend a couple... and share a real horror story about a host who changed the way PHP and Apache work (switched to CGI from mod_php)and brought my whole website down for three days.