Many thanks for the extension, i have been trying to migrate for sever months with the same extension. My site has over 2000 articles, and only a few where migrated. But after reading the debug, i took the execution_time of php from 60s to 360s and in the configuration i changed the default database prefix (from j25_ to jom_). I undone this last thing and it worked. Sorry for my poor English and thanks again.