I've checked this wordpress plugin in your area, and delay pills work perfect in IE 7 &lifier 8: http://wordpress.org/extend/plugins/tabber-tabs-widget/

Now after i implement around the live site, it's showing the tab three occasions. I've made the default CSS style2, however it still shows tab menus three occasions in IE 7 &lifier 8.

Please view it: http://openxcellca.info/Parthvi/wordpress/layer3/