You can turn on logging for every transfer, or you can have Auto FTP Manager send you a email after a scheduled transfer. Please see this page for more information:
https://www.deskshare.com/help/afm/TransferLogSettings.aspx
Files that are actively open and being written to will not transfer. Try Auto FTP Manager on a automated schedule of every 10 minutes. Only the files that are completely encoded, and no longer being written to, will be transferred.