Migrating Facebook comments

I'm trying to migrate my old Facebook comments box to the new one. I added to my code 'migrated="1"', nothing else changed.

<fb:comments xid="myxid" url="/url/to/article" width="618" migrated="1"></fb:comments>

But old comments box is still there! Nothing happened, comments look the开发者_JAVA百科 same. What do I do wrong? Is there anything else I should do?

According to this article http://developers.facebook.com/blog/post/472/, there should be nothing more required to migrate.

Thanks

Change the url parameter to href.