ERROR: Missing PHP XSL/XSLT extension

I get this error:
The XSL/XSLT module for PHP is not installed. This module is needed in order for your site to be indexed and spidered automatically by search engines. Please ask your webhoster to install this module.

So I called customer service and this is what they recommended

By default, files with a .php extension run under PHP 4 and files with the .php5 extension run under PHP 5. The .htaccess file, located at the root of your site, can be used to change these default settings. The following entries in a directory’s .htaccess file designate .php files to run under PHP 5 and .php4 files to run under PHP 4.

AddHandler x-httpd-php5 .php
AddHandler x-httpd-php .php4

Changes made to an existing .htaccess file will be seen immediately. When a new .htaccess file is created or an existing .htaccess file is deleted, however, these changes will not be seen until the htaccess cache is cleared. This occurs every hour.

And this is the code I created:
AddHandler x-httpd-php4 .php

According to godaddy all I had to do was create the .htaccess file and move it to my website. But I am still getting the error, what do I do?

Guy