Andy Millne's post in Converter Crashing while converting Attachments was marked as the answer
Attachments are converted in order of the primary key in the phpbb source database. We have tools and debug methods available that techs can use that will be able to identify the file causing problems without any trouble. This will certainly be the fastest method of determining the problem rather than speculating and trying to guide you through debugging.
Andy Millne's post in AndyMillne, man reads the MP .... I bought the classifieds and does not work! At least the guy an answer, I need it and am awaiting response to 3 days was marked as the answer
The only personal message I have from you was sent yesterday and I have not been able to get to it yet, please rest assured I have not forgotten about you :)