by Mary Cooch.
Hello there. Well first of all, you no longer need conversionthingie - you should be able to put a 1.9 course into 2.6 and it will restore itself. You won't get any users though, but I assume you have already realised that. Your new Moodle site should already have a moodledata directory created when the new site was made. Leave that alone; don't try to bring anything over because if the restored courses work correctly they should bring over the images and other files.
The way Moodle files are stored in 2.6 is quite different from 1.9 where you could physically (well virtually physically!) see them in the course files directory -this is no longer the case as they are encoded. Perhaps this might help you Course files