I'm not sure what you mean by distribution so here is everything that seems relevant.
OS
Code:
Ubuntu 7.04 (Feisty Fawn), Linux 2.6.20-16-386 i686 GNU/Linux
Tar
Code:
tar (GNU tar) 1.16
Copyright (C) 2006 Free Software Foundation, Inc.
BackupPC
Perl
Code:
This is perl, v5.8.8 built for i486-linux-gnu-thread-multi
Apache2
Code:
Server version: Apache/2.2.3
Server built: Jan 15 2007 18:14:50