Joomla implements the XML-RPC technology as an add-on module, which needs to be installed and enabled (possibly configured).

The module is available here: http://www.joomler.net/download/138-joomla16-component.html.

Different versions of Joomla exists, and the XML-RPC implementation is getting better as we go on.

The GN4-Wordpress.dll works better with Joomla 2.5 and XML-RPC 1.8.1: the version for Joomla 1.7 doesn't allow deletion of posts (but they can still be un-published, perhaps a better thing to do). A new version of this module has been released a couple of weeks ago, but it has not been tested.

Other blogs support the MetaWeblog API (http://xmlrpc.scripting.com/metaWeblogApi.html) an XML format for remote posting.

Wordpress extends on this API. The GN4-Wordpress.dll provided supports both the MetaWeblog API and the Wordpress one, allowing to post GN4 stories to any blog that:

•Supports the XML-RPC protocol

•Implements either the Wordpress or the MetaWeblog API

You can find it useful to test the blog configuration for the remote publication of stories the use Windows Live Writer (http://www.microsoft.com/en-us/download/details.aspx?id=8621) which can quickly confirm if the installation of XML-RPC on the blog is correct and if everything works as expected, before starting to develop a GN4 workflow.

The use of Fiddler (http://www.fiddler2.com/) is useful to catch possible implementation errors in the XML-RPC protocol on the blog.