I released the 1.1 version. This version adds a configuration options screen so that the way the plugin works can be tweaked. It also allows the use of an index page without getting a 404 error.
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I released my first plugin. I created this to fix all the problems on my personal blog after I migrated from Blogger.com to wordpress. Since it is working well I decided to release it. I have two more related to blogger.com migrations which correct the archives and labels pages and I will try to get those out soon.
Read about the plugin and download it at Permalink Finder Plugin.