With bitcomet I needed the partially downloaded file and the *.bc! file also. This lets bitcomet know that the torrent I am attempting to download is already started.
With bitcomet the default download location is c:\downloads.
All the bitcomet files and partial downloads are stored here. You will need to transfer all the files ffrom your download location, default or user defined.
i dont got a bc file and i use BitTorrent 6.2