Should not be a backport, but rather a stable release update. See https://wiki.ubuntu.com/MOTU/SRU for the procedure.
** Changed in: dapper-backports (upstream) Status: In Progress => Rejected -- Some portions of Smarty are broken in PHP >= 5.1.2 https://launchpad.net/bugs/35385 -- ubuntu-backports mailing list ubuntu-backports@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-backports