Live Writer is a great tool to create, edit the blog post. Live Writter does not have inbuilt ability to post on a Dotnetnuke based website (as of Maty 9, 2009). There are several paid plugins available for Live Writter that allow you to integrated your Live Writter with Dotnetnuke based website and Dotnetnuke modues.
Here I want to ilustrate how you can use the free Dotnetnuke module “metaPost Community Edition” to post & edit your articles on Ventrian News Articles module.
You will need edit permission on the one or more Ventrian News Articles module in the website.
How to Configuret Live Writer and metaPost For Ventrian News Articles
Select Blog->Add Blog Account
More details are available at http://dnn.itcrossing.com/products/modules/metapost/providers/ventrian-news-articles/
You can also read my earlier blog post on Windows Live Writer