This is what happened:
- The text and images inside the posts imported nicely.
- The images for the Tumblr image posts did not. I didn’t have very many, so I just copied them from my Tumblr, and then inserted them into the correct image posts.
- The post types had the correct Format type, except that the normal posts were labeled as “Aside,” instead of “Standard” in WordPress.
It might be useful to try adding the WooTumblog plugin to your WordPress before importing. I’m curious to know if that helps with the image import.