HELP: URL problem…

Wonderful Plugin… but I have this problem.

my url is http://www.example.com/blog/mypage/

but some of my visitors came to the page as http://www.example.com/blog/mypage/?z=a and some as http://www.example.com/blog/mypage/?z=w

Their comments don’t show for http://www.example.com/blog/mypage/

What can I do to show ?z=a and ?z=w comments under http://www.example.com/blog/mypage/ ?

I can change the code… if you point me in the right direction..

Thanks!

https://ww.wp.xz.cn/plugins/facebook-comments-plugin/