Today I released v2.1.3 of the Zenus perl usage checker on http://rachaelandtom.info/zenus
It is suggested all users upgrade to this version. It has been running stable here for over a month.
Changes:
Make sure estimated end of month usage is never less than usage to date
Return uploaded amount in Zenus module's getUsage()
Output uploaded amount from zenus.pl ('usage' output mode only)