As Robert James Clay announced today:
The 1.3.15-2 package for LedgerSMB has been accepted into Debian
unstable. I expect that version of the package to migrate to Debian
testing (wheezy) by the end of this month.
LedgerSMB Debian source package page:
http://packages.qa.debian.org/l/ledgersmb.html
Besides becoming available in the Debian repositories, information
about downloading the current package manually is also available at:
http://packages.debian.org/sid/all/ledgersmb/download