7
xoopspoll is old, and has problems with new php. at least I think.
on my site it also didn't work. just showed the list no mater what I cliked in the admin list. then I edited the php, to use $_REQUEST instead of $HTTP_POST_VAR and it worked.
but any poll that I add doesn't have no title, options or nothing. just empty.
so try something newer. I'm looking at
http://xprojects.co.uk/modules/xproject/index.php?op=viewSummary&pid=3
it should be okay. I'm about to test it.