hi, partclone from wheezy doesn't contain /usr/sbin/partclone.reiserfs, so there's no support to backup reiser3 volumes.
For what is it worth, I found this entry in the changelog: 2007-11-26 thomas <thomas@93b75dfe-da2d-4241-a08d-2141769abc04> default not enable reiserfs, until progsreiserfs can get from debian git-svn-id: svn+ssh://140.110.240.196/partclone_svn@6 93b75dfe-da2d-4241-a08d-2141769abc04