Blogger to WordPress Plugin Help

I followed the steps for using the Blogger to WordPress Redirect Plugin (http://www.devilsworkshop.org/blogger-to-wordpress-traffic-permalinks-redirection-plugin/), but I'm running into an issue.

My old blog used a .html for the URLs but on WordPress I don't want to have that. For example on Blogger one of my posts was: http://andymerrill.com/rantreview/2007/02/graw-2-demos-reviewed.html

But on wordpress it is: http://andymerrill.com/blog/2007/02/graw-2-demos-reviewed/

I think this difference is causing an issue because all of the pages redirect to the the blog's main page even with the plugin running.

Is there a way I could still use it to redirect but drop the .html as it does?

Thanks.