I also like this free app this is not a plug or a ad seeing we all work in Pix Format
Sequence 911 is a multilanguage (English/French) utility that allows you to rename and renumber a list of file forming a sequence. It allows you to preview your images before selecting them, specify different destination names, reverse a sequence, enumber, renumber and move, renumber and copy image sequences into the same or different destination, and even checks for missing files.
http://www.highend3d.com/downloads/t...me_pad/87.html