@babybiggles
I’m afraid I haven’t received your mail. Could you please send one again?
In the quick-post-widget.php file you could try to change the line which says:
wp_enqueue_script('quick-post-script', $plugin_url . 'js/qpw.js', array('jquery','jquery-ui-dialog'));
to:
wp_enqueue_script('quick-post-script', $plugin_url . 'js/qpw.js', array('jquery','my-jquery-ui-site',,'jquery-ui-dialog'));
Works for me with your theme and the Quick Post Widget.
There must be a reason why an older version of jquery-ui is loaded by your theme. This seems to cause the conflict.
Please let me know whether the proposed change works for you.
inapan