I've just installed CKS:EBE 3.0 and when posting a new blog post from Windows Live Writer (with Twitter Notify) the TinyURL from the Twitter plugin is incorrect.
eg: my blog is at http://www.moss2007.be/blogs/vandest
the tinyurl redirects (checked this with Fiddler) to /blogs/Lists/Posts/1_.000
So the URL for the post returned to Windows Live Writer is pointing to the incorrect web, but also the URL should be 'friendly'.
Twitter Notify Plugin: