I have this problem with flash file uploader. Basic file uploader works fine, but flash file uploader gives me a http error when it ends the file upload, and the file is not added to the post or the media library (but is uploaded to the server. I test this via ftp).
I tried some solutions I´ve googled on the webs, and searched here in the forum, but none of them works at all, because my host not let me manually edit or upload the .htaccess in anyway.
I´ve tried to reinstall WordPress, but not works.
How can I fix that?