OK, this is starting to make sense to me.
downloads.dat CAN be backed up and probably could be used as a replacement to restore partially downloaded files that turn red as I am 100% positive has happened to me.
Still, I don't see any way to restore those partially downloaded files to the state they were in previously without a backup.
Would probably be helpful to others if this post were combined with "What A Bummer."
http://www.gnutellaforums.com/showth...threadid=26392