duplicate content and permalinks

Hello everyone,

I was wondering why spiders like Googlebot still see my original URL structure in WP instead of the permalink setups I have installed? For example these two URLs are the same:

http://www.jaankanellis.com/putting-seo-on-your-dashboard-by-paul-bruemmer/

http://www.jaankanellis.com/2006/01/27/?p=184

Right now Googlebot is spidering both most of the time it is spidering the numeric based one more, when I want them to spider the one using the article title. Any ideas how I can stop the spider from seeing these old URLs besides having to do one by one 301 redirects?

Thanks,

Jaan