Do oyu always have to install an extra to do this, like the article here explains you have to install PHP XML-RPC:

http://64.233.167.104/search?q=cache:c8P-pZNi_gEJ:webservices.xml.com/pub/a/ws/2004/03/24/phpws.html+consuming+php+%22web+service%22&hl=en&client=firefox-a

BTW, the idea here is that I will be calling web services written up in .NET, serving back plain HTML.

Thanks! :)

You would be better off using a PHP extension like xmlrpci, but you could always use PEAR::XML_RPC, http://pear.php.net/package/XML_RPC