I was getting an error in IE8 regarding the jquery ui.tabs.js file. Just thought I'd post my fix here in case anyone else has this problem.
I copied jquery.js, ui.core.js, ui.tabs.js located in the wp-includes-js-jquery folder into a folder I created and named jquery. I placed that folder in the js folder of the vslider plugin folder.
Then I replaced the function code below the note load jquery from WordPress with this:
function vslider_loadJquery( ) {
wp_enqueue_script( '/vslider/js/jquery/jquery.js','/vslider/js/jquery/ui.core.js', '/vslider/js/jquery/ui.tabs.js', array( 'jquery' ) );
}
Hope this helps anyone who had this problem. I love this plug in.