Multiple jquery issues on IE8 – Windows XP

I inherited this site and am trying to help the owner. The site – https://cfoforrent.com shows up fine in later versions of Windows, and in Safari, Chrome and Firefox, but on IE8 in Windows XP, the slider (LayerSlider WP) and accordion (Accordion Pro) don’t show up. Many, many jquery errors are showing, (listed below) even when disabling all the plugins.

I have updated WordPress to 3.8, all plugins are updated, and have the jQuery Updater plugin, and I tried adding the following to the wp-config file. Nothing seems to work.
define('CONCATENATE_SCRIPTS', false)
define('SCRIPT_DEBUG', true)

Any help would be greatly appreciated. jQuery errors are shown below (there is a ton of them).

Message: Object doesn’t support this property or method
Line: 4
Char: 6105
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/jquery-updater/js/jquery-2.0.3.min.js?ver=2.0.3

Message: ‘jQuery’ is undefined
Line: 2
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.2.1

Message: ‘jQuery’ is undefined
Line: 20
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/skins/js/layerslider.kreaturamedia.jquery.js?ver=4.1.1

Message: ‘jQuery’ is undefined
Line: 41
Char: 2
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/skins/js/jquery-easing-1.3.js?ver=1.3.0

Message: ‘jQuery’ is undefined
Line: 14
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/skins/js/jquerytransit.js?ver=0.9.9

Message: ‘jQuery’ is undefined
Line: 12
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/jquery.fitvids.js?ver=1.0

Message: Object expected
Line: 62
Char: 7
Code: 0
URI: https://cfoforrent.com/

Message: ‘jQuery’ is undefined
Line: 195
Char: 1
Code: 0
URI: https://cfoforrent.com/

Message: Object expected
Line: 196
Char: 1
Code: 0
URI: https://cfoforrent.com/

Message: Expected ‘)’
Line: 370
Char: 285
Code: 0
URI: https://cfoforrent.com/

Message: Object expected
Line: 384
Char: 1
Code: 0
URI: https://cfoforrent.com/

Message: Object expected
Line: 7
Char: 813
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/contact-form-7/includes/js/jquery.form.min.js?ver=3.45.0-2013.10.17

Message: ‘jQuery’ is undefined
Line: 1
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/contact-form-7/includes/js/scripts.js?ver=3.5.4

Message: Object expected
Line: 15
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/thickbox/thickbox.js?ver=3.1-20121105

Message: Object expected
Line: 2
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/plugins/email-subscription/assets/email-subscription.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.core.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.widget.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.mouse.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.resizable.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.draggable.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.button.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.position.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 4
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-includes/js/jquery/ui/jquery.ui.dialog.min.js?ver=1.10.3

Message: ‘jQuery’ is undefined
Line: 12
Char: 2
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/superfish.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 16
Char: 2
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/supersub.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 1
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/hoverIntent.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 39
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/jquery.easing.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 2
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/jquery.fancybox.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 34
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/jquery.fancybox-media.js?ver=1.0

Message: ‘jQuery’ is undefined
Line: 21
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/jquery.fancybox-thumbs.js?ver=1.0

Message: Object expected
Line: 1
Char: 1
Code: 0
URI: https://cfoforrent.com/wp-content/themes/searchform/javascript/gdl-scripts.js?ver=1.0