It is done.
Version 0.1 of the converter successfully produced 845 blog entries and associated comments. You can see the handiwork right here (yes, this very page you’re reading)!
There are some teething issues:
1. The categories haven’t been done
2. Internal links (referring to posts) still point to their original location
3. The default settings for posts and comments might need polishing up
Otherwise, it was a really simple process. I created the SQL file, GZipped it, and imported the GZipped file into PHPMyAdmin.