Canonical URL's | Configuring All in One SEO Pack Pro | Support | Semper Plugins

I’ve installed the Pro version and enabled it etc and ticked the Canonical URL’s box but it doesn’t appear to be working for me.

My understanding is that this should change the URL from http://jonathanthomsenphotogra…..age_id=238 to something like http://jonathanthomsenphotogra…..Page_Title for my existing pages. Is there anything I need to go and edit on the individual pages for this to happen?

I’ve only just started configuring this so my apologies if I’ve missed something.

Have I misunderstood what the Canonical URL is supposed to do or have I missed something in my setup?

Thanks
Jonathan