A Little Stymied

Unfortunately, I can't figure out how to access the entirety of a blog post within my LiveWriter plugin. It's easy enough to embed an hReview in a post, but it's a harder matter to actually create a template. As far as I can tell, I can only edit the contents of my generated hReview in the properties pane. That's not acceptable: I want to be able to use the nice editing pane of LiveWriter to edit the code that I generate. Or, for my purposes equivalently, I want to be able to scoop up all the content of an about-to-be-posted blog entry and reformat it (embedding the hReview CSS styles). I can't see a way to do that with the LiveWriter SDK.