I have an Xbox classic (not 360) that I use as a HTPC using XBMC. But today a rogue application activated "Xbox Live" mode, which updated the system to boot into Xbox Live instead of XBMC. I have no idea what Xbox Live is - I don't use the Xbox for gaming, only as a HTPC for media. So how do I get XBMC back on the Xbox?
All instructions I've seen seem to start with "use FTP" - but the Xbox Live dashboard doesn't appear to have an FTP server.