How consume a XML-RPC web service n CF 7

Hi,

I am very new to using XML-RPC web services. In the past I was easily able to consume other web services in ColdFusion , which is why I love Cold Fusion! However, I need to consume a XML-RPC web service at a remote web server and I am finding it tricky and the simple instructions I usually find are non-existent in MX 7 for this topic. :(

The web service I am consuming is for user authentication to another web site. After successfully authenticating with the web service, the web service will return a HTTP string that is unique for that user that I simply redirect the user to in order to login that user to their web application.

The XML for their site is:
−
<methodResponse>
−
<fault>
−
<value>
−
<struct>
−
<member>
<name>faultString</name>
<value>java.lang.NullPointerException</value>
</member>
−
<member>
<name>faultCode</name>
−
<value>
<int>0</int>
</value>
</member>
</struct>
</value>
</fault>
</methodResponse>


Could someone please help me with some simple instructions on how to consume this web service using my old friend CFINVOKE? :)

Thanks!