Can you please send me a tgz or zip file of your unconverted data directory via email? This makes debugging easier for me.
Got your mail :-) I just let your data run through the conversion helper script. Everything worked fine. Are you sure you set the correct permissions for the datadirectory? The datadirectory and and all files within need to be writable by the webserver!
Got no feedback - I assume it was a permission problem. If not send a request to reopen this task.
Got more feedback - doesn't look like a permission problem but I'm not sure yet what it is. Has anyone else similar problems?
Another question: Do you use PHP's safemode? Maybe this is related to FS#179 ?