I've come up with a bit of a problem. I've decided I want to change how wordpress does my permalinks, but I already have quite a few posts setup and indexed in Google.

The way they are currently set up is:
Code:
http://www.xy7millions.com/213/description-of-xy7-campaign-types
I want them to just be:
Code:
http://www.xy7millions.com/description-of-xy7-campaign-types
If I change it in wordpress right now will Google just reindex them correctly and remove the old? Or will I have a bunch of pages with no content on them?

Thanks,
Luke

Edit
Nevermind...I answered my own question by just trying it. If you change your permalink structure on wordpress then wordpress will just redirect the old links to the new links.