Being a complete novice at JavaScript and JQuery I have a script that was coded for me. However I wish to update it a little as it is not very search engine friendly as there is no link to the other tabs except the s tab that is defaulted to display.

The script I am using version 1 of idTabs which was developed by Sean Catchpole http://www.sunsean.com/idTabs/ and you can see my version below. However he now has an updated version 2.2 that is completely different.

My 3 questions are this, 1) why are the two so different, 2) how difficult is it to update my version to the 2.2 updated version and 3) if it is a simple exercise can anyone help me out somewhat.

If you can answer yes to all my questions then hopefully this is a huge headache overcome.

My Version

Code:
/* idTabs ~ Sean Catchpole - Version 1.0 */

(function($){
	$.fn.idTabs = function()
	{
    //Setup Tabs
	var ul = $('ul', this); //Save scope
	var self = this;

	$('li', ul).each(function() { // hide empty tabs
		var c = $('#content_' + this.id);
		if (c.length && !jQuery.trim(c.text())) {
			$(this).remove();
		}
	});

	var list = $('li', ul).bind('click', function()
	{
		var elm = $(this);
		// we set selected_section to keep active tab opened after form submit
		// we do it for all forms to fix settings_dev situation: forms under tabs 
		if ($(self).hasClass('cm-track')) {
			$('input[name=selected_section]').val(this.id);
		}

		if (elm.hasClass('cm-js') == false) {
			return true;
		}

		/*if (hndl[$(ul).attr('id')]) {
			if (hndl[$(ul).attr('id')](elm.attr('id')) == false) {
				return false;
			}
		}*/


		var id = '#content_' + this.id;
		var aList = []; //save tabs
		var idList = []; //save possible elements
		$('li', ul).each(function()
		{
			if(this.id) {
				aList[aList.length] = this;
				idList[idList.length] = '#content_' + this.id;
			}
		});

		//Clear tabs, and hide all
		for (i in aList) {
			$(aList[i]).removeClass('cm-active');
		}

		for (i in idList) {
			$(idList[i]).hide();
		}

		//Select clicked tab and show content
		elm.addClass('cm-active');

		// Switch buttons block only if:
		// 1. Current tab is in form and this form has cm-toggle-button class on buttons block or current tab does not belong to any form
		// 2. Current tab lays on is first-level tab
		var id_obj = $(id);
		if (($('.cm-toggle-button', id_obj.parents('form')).length > 0 || id_obj.parents('form').length == 0) && id_obj.parents('.cm-tabs-content').length == 1) {
			if (id_obj.hasClass('cm-hide-save-button'))	{
				$('.cm-toggle-button').hide();
			} else {
				$('.cm-toggle-button').show();
			}
		}

		// Create tab content if it is not exist
		if (elm.hasClass('cm-ajax') && id_obj.length == 0) {
			$(self).after('<div id="' + id.substr(1) + '"></div>');
			id_obj = $(id);
			jQuery.ajaxRequest($('a', elm).attr('href'), {result_ids: id.substr(1), callback: [id_obj, 'initTab']});

			return false;
		} else {
			id_obj.initTab();
			jQuery.loadAjaxLinks($('a.cm-ajax-update', id_obj));
		}

		return false; //Option for changing url
	});
	
    //Select default tab
	var test;
	if ((test = list.filter('.cm-active')).length) {
		test.click(); //Select tab with class 'cm-active'
	} else {
		list.filter(':first').click(); //Select first tab
	}

	$('li.cm-ajax.cm-js').not('.cm-active').each(function(){
		var self = $(this);
		if (!self.data('passed') && $('a', self).attr('href')) {
			self.data('passed', true);
			var id = 'content_' + this.id;
			self.parents('.cm-j-tabs').eq(0).next().prepend('<div id="' + id + '"></div>');
			$('#' + id).hide();
			jQuery.ajaxRequest($('a', self).attr('href'), {result_ids: id, hidden: true});
		}
	});

	return this; //Chainable
};

$(function(){ $(".cm-j-tabs").each(function(){ $(this).idTabs(); }); });
})(jQuery);

jQuery.fn.extend({
	initTab: function ()
	{
		this.show();
		control_buttons_container = $('.buttons-bg');
		if (control_buttons_container.length) {
			control_buttons_floating = $('.cm-buttons-floating', control_buttons_container);
			if (control_buttons_container.length != control_buttons_floating.length) {
				control_buttons_container.each(function () {
					if (!$('.cm-buttons-floating', this).length) {
						if ($('.cm-popup-box', this).length) {
							$('.cm-popup-box', this).each(function () {
								if ($('iframe', this).length) {
									$(this).appendTo(document.body);
								} else {
									$(this).appendTo($(this).parents('.buttons-bg:first').parent());
								}
							});
						}
						$(this).wrapInner('<div class="cm-buttons-placeholder"></div>');
						$(this).append('<div class="cm-buttons-floating hidden"></div>');
					}
				});
				control_buttons_container = $('.buttons-bg');
				control_buttons_floating = $('.cm-buttons-floating', control_buttons_container);
			}
			jQuery.buttonsPlaceholderToggle();
		}
	}
});
Updated Version

Code:
/* idTabs ~ Sean Catchpole - Version 2.2 - MIT/GPL */
(function(){var dep={"jQuery":"http://code.jquery.com/jquery-latest.min.js"};var init=function(){(function($){$.fn.idTabs=function(){var s={};for(var i=0;i<arguments.length;++i){var a=arguments[i];switch(a.constructor){case Object:$.extend(s,a);break;case Boolean:s.change=a;break;case Number:s.start=a;break;case Function:s.click=a;break;case String:if(a.charAt(0)=='.')s.selected=a;else if(a.charAt(0)=='!')s.event=a;else s.start=a;break;}}
if(typeof s['return']=="function")
s.change=s['return'];return this.each(function(){$.idTabs(this,s);});}
$.idTabs=function(tabs,options){var meta=($.metadata)?$(tabs).metadata():{};var s=$.extend({},$.idTabs.settings,meta,options);if(s.selected.charAt(0)=='.')s.selected=s.selected.substr(1);if(s.event.charAt(0)=='!')s.event=s.event.substr(1);if(s.start==null)s.start=-1;var showId=function(){if($(this).is('.'+s.selected))
return s.change;var id="#"+this.href.split('#')[1];var aList=[];var idList=[];$("a",tabs).each(function(){if(this.href.match(/#/)){aList.push(this);idList.push("#"+this.href.split('#')[1]);}});if(s.click&&!s.click.apply(this,[id,idList,tabs,s]))return s.change;for(i in aList)$(aList[i]).removeClass(s.selected);for(i in idList)$(idList[i]).hide();$(this).addClass(s.selected);$(id).show();return s.change;}
var list=$("a[href*='#']",tabs).unbind(s.event,showId).bind(s.event,showId);list.each(function(){$("#"+this.href.split('#')[1]).hide();});var test=false;if((test=list.filter('.'+s.selected)).length);else if(typeof s.start=="number"&&(test=list.eq(s.start)).length);else if(typeof s.start=="string"&&(test=list.filter("[href*='#"+s.start+"']")).length);if(test){test.removeClass(s.selected);test.trigger(s.event);}
return s;}
$.idTabs.settings={start:0,change:false,click:null,selected:".selected",event:"!click"};$.idTabs.version="2.2";$(function(){$(".idTabs").idTabs();});})(jQuery);}
var check=function(o,s){s=s.split('.');while(o&&s.length)o=o[s.shift()];return o;}
var head=document.getElementsByTagName("head")[0];var add=function(url){var s=document.createElement("script");s.type="text/javascript";s.src=url;head.appendChild(s);}
var s=document.getElementsByTagName('script');var src=s[s.length-1].src;var ok=true;for(d in dep){if(check(this,d))continue;ok=false;add(dep[d]);}if(ok)return init();add(src);})();