Below are perl fuse scripts that allow BackupPC backup pools to be access as normal filesystems via FUSE.
You will also need a working installation of BackupPC, a fuse enabled linux kernel, and the fuse perl module from CPAN.
Invoke with: ./backuppc-fuse.pl mount_point
Please note that the scripts above are proof of concept code. A more developed version based on the above can be found at Pieter Wuille's website.