I'm reading a number of comments where people have said they are transitioning from Typepad to Wordpress or Posterous.
I'm going to do a couple of blog posts that step you through the process of porting your content, but if you'd like someone to save you the hassle, I'm happy to help. While I can't do it for free, I will do it for a very reasonable fee (how does $97 sound?).
Let me know if you're interested.