changing product urls -but I don't want to lose or hide existing likes?

As part of site restructuring (essentially SEO related improvements) one of my site's product urls are all goin开发者_C百科g to change. Using ReWrite rules the products are changing from the current: /[manufacturer]/products/[product_id].php to /[manufacturer]/[range]/[product_name].php

But I notice on the new pages that previous likes for these products are not showing. I have used the graph protocol to generate the like buttons, so I was hoping that if I kept the old URL in the meta tags that they would link up to the old likes - unfortunately this is not happening.

Is there anyway to like my new product urls to their existing likes??

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You can add permanent redirect from old product URL to new, and show old likes (src to old url).

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this question is answered by this now inactive bug:

http://bugs.developers.facebook.net/show_bug.cgi?id=18198

Essentially need to add the old urls in the href tag of the like button on your new page:

<fb:like href="http://[domain_name]/[old_path]" ></fb:like>