I think I got all the old posts converted to using Markdown. Since this blog started with [Textpattern](http://www.textpattern.com) which uses [Textile](http://textism.com/tools/textile/), most of the posts were in that format. Typo was smart enough to handle posts in different markup formats and switch formats to Markdown a few months ago. WordPress is not smart enough to handle posts in different formats and the Textile ones were broken when rendered in Markdown.
I also fixed up all of the images. Some of the old ones were in [Photostack](http://photostack.org) install which had gotten moved and broken a while ago. I am going to have to figure out a more permanent solution to the location of images.