Installing PHP on apache 2

["John Donovan" <john@xxxxxxxxxxxxxxxxxxx>]

I have followed the configuration instructions - I have put the following 
into the apache config file :

<IfModule php4_module.c>

  php_value include_path ".;/php"

  php_admin_flag safe_mode on

</IfModule>



LoadModule php4_module "c:/php/php4apache2.dll"



AddType application/x-httpd-php .php



but all I get when I test the configuration is the error message :cannot 
load Php4apache2.dll into server, the specified module cannot be found. I 
have placed the php4apache2.dd in the php directory but to no look.



Any ideas?