bug(?) in the poll script when it's included in another page

with v1.6 of the poll, when it's included in another page (include 'sidebar.php' for example) and you vote/view the results, it is shown in the main page (the one that includes the other one)

now with the newest version, it seems like when you vote/view the results, you don't get the main page but the page that's included!?
you can see this http://cybercodeur.net/site/php/poll.php

my subject talked about a bug, but I don't know this, it's not like there's documentation for this poll, and by searching trough the code for 5 minutes I coudn't find the answer either

anyone that can help me with this, or IS it a bug?
thx

I've solved it, you shouldn't include files with http:// but use a /foo/bar path