There are 2 new versions, data base entry is 1.1. Quote from
http://www.mediachance.com/free/renamer.htm, tab "free trial / free version":
Oscar's Renamer PRO (Unlimited Evaluation Version)
Version: 2.0.1 (10/SEP/2012)
This Unlimited Evaluation Version is fully functional and doesn't expire. It features Macro recording, shell integration and the new Micro Script. Evaluation version displays a nag screen on the start.
What's new in 2.0.1: Fixed recording macros for DEL and Back, also records CTR+K,U,L,J,N for changing case
Oscar's Renamer (old XP free version)
Version: 1.2 (FREE)
Limitations:: This is the old 100% free XP version of Oscar's Renamer that is dated back to 2001.
It reliably works only on Windows XP. On Vista and W7 recording macro will freeze your keyboard/mouse, please use the PRO version!
Uniextract-1.6.1 refused to extract both files

, but Lupo's version 1.6.1r6 worked.