Just thought to mention that 'arvixe' hosting has a zip/unzip feature in their file manager, just tried it, uploaded, in this case, a small zip file, chose unzip then move to/pick destination folder. This is done without and ftp program. So I guess if you go to your 'gsp mediaobject' folder you could unzip then sync?
Jeff.
UPDATE...just tried this with some pics and documents and yes it works, so that's a thumbs up for 'arvixe'