I've been trying to convert a very complex site from EE to Drupal for some time now. Finally, I gave up and wrote my own conversion script. Special thanks to |Gatsby| for his support and love. I will try to put this into the handbook tomorrow morning. This originally started out as an attempt to refine the WordPress -> Drupal engine available in the handbook..
It converts users, posts, comments and categories
It uses API hooks, so it should be reasonably easy to upgrade with time
Because of the above, it supports pgsql and mysql for the drupal database (and whatever else drupal writes).
Both databases must be on the same server
Only tested on EE 1.0 and Drupal 4.7.0 beta 3
Please refine mercilessly.
tarek : )
It says that the code can't be posted because it's suspicious. You may find it at ExpressionEngine_to_Drupal_migration_program on the Free ZNet project wiki.