jQuery UI 1.8.17 and selectmenu

Question

The answer to this question will probably give me a "doh!" moment, but where can I find a working selectmenu plugin that work with a late(ish) jquery ui version?

Iv tried from all of these places, but none seem to work:

http://www.filamentgroup.com/lab/jquery_ui_selectmenu_an_aria_accessible_plugin_for_styling_a_html_select/

https://github.com/fnagel/jquery-ui

http://view.jqueryui.com/selectmenu/demos/selectmenu/default.html

http://jqueryui.com/download

If you believe any of them should work, please point me in the right direction so that I may be able to investigate why it doesnt work for me.