I replied to your other post before I saw this one...
I think we'll have to wait till Mark returns and see what he says...I think that you can already update hijack even with files=0 if you have the password, but the reason jEmplode wont do it is that it is unable to read the /proc/version file to see if it a new version or not, that is a file that it checks (through http?) to get your version number...you should view and you'll see what I mean.