I am trying to get my site ranked better by Google and think i might have worked out what the problem is? I just wanted to see if others can confirm it?

Looking at the indexed pages in my site, I notice Google has indexed:

ww.handcrafteduk.com/products_new.html?zenid=55f7424c38f086c

and

ww.handcrafteduk.com/products_new.html?zenid=4e5ce213ab72aad27

I deliberately misspelt the links as they weren't showing up properly on webproworld!

Now, these are both the same page (I have since stopped Google indexing pages which include the zenid). Would this be classed as duplicate content? And, would it be having a negative effect on my ranking? If so, do you know how long it will take Google to 'forget' these zenid pages?

Thanks,

Gary