@Tingwei It works for me too, however it doesn't fix the links on the download page of the Brainstorm server: most people would not know how to go from the "FTP" link to configuring advanced parameters of FileZilla.
Is it possible to make it the default of the FTP server, so that typing "ftp://neuroimage.usc.edu/pub/tutorials/sample_introduction.zip" in the address bar of any web server can start downloading the file easily, as it was working not so long ago?