The job: Convert Wordpress database dump from Wordpress version 2.0.1 to Wordpress 2.5.1. The dump is from a small blog with maybe a few dozen posts.
Source: DB dump file, UTF-8, zipped, sent via email
Target: same format
* Everything intact, especially the categories
* It must be possible to import the delivered dump file into a standard Wordpress 2.5.1 database without changes. DB is MySQL 5.0, UTF-8, Linux
* delivery within 2 days of project start
I already tried it myself, but somehow I always lost the categories during the upgrade process.