I just wanted to let you know that the Change Permalink Helper 0.1 plugin does not work and/or is incompatible with WordPress 3.2.1. I tried it several times, clearing my browser cache in between. And I even tried modifying my .htaccess file, but that didn’t work either.
However, after trying several other plugins, I did manage to find a working alternative, which is SLRedirectPlugIn 1.0. I hope this helps and have a great, successful day, and God bless you and yours.