Niall,
I see that you haven’t addressed the issue that I raised at : http://ww.wp.xz.cn/support/topic/doesnt-publish-to-timeline?replies=14.
This plugin still doesn’t work on scheduled posts, and I have spent almost a year trying.
grant permission for your application to publish to Facebook on your behalf in the Facebook Account section.
I can wish upon a star, but what do you mean with “grant permission”. Nothing on the page has anything to do with granting permission. Be more precise, please.