[galaxy-user] downloading (and renaming) output files from Galaxy public server

Hi,  I am using the galaxy public server.  Is there a way to access output files (via ftp, perhaps) so I can bulk download them to my computer? I am over my quota and want to get data off of Galaxy but prefer not to do this all one at a time.    Similarly, is there a way to access a directory (via unix, ftp, etc) to rename files quickly while they are on Galaxy, since renaming each output file (i.e. the multiple ones output from cuffdiff) within galaxy is very inefficient and time consuming. Thanks. Rich