I have finally had a chance to update my Permalink Redirect WordPress plugin. The new release is 0.5 which has some bug fixes as well as new features.
/author/%author%/should work properly now. It was broken in WordPress 2.0 due to changes in userdata cache.
- Permalink Redirect page under Options menu. Currently it allows you to put in regular expression patterns for URI to skip matching and redirecting. You might have some special path that you do not wish Permalink Redirect plugin to touch -- just put them in there.
Thanks to all who have reported bugs.