[MPlayer-users] How to upload files in ftp://upload.mplayerhq.hu/MPlayer/incoming ?

Hello, I would to upload some files relating to a bug-report I plan to post to the mplayer-users. Unfortunately, all my file uploads to ftp://upload.mplayerhq.hu/MPlayer/incoming systematically fail. I can connect to the FTP incoming directory with anonymous login, but it seems I have no write permission to that directory. My email address is refused as login name, so where and how to obtain a login to the FTP resources ? Thanks a lot in advance for any help/suggestion. Alain-Pierre