Nivo slider & idTabs on one WordPress theme – working problem

I want to use together:

nivo slider: http://nivo.dev7studios.com/
idTabs: http://www.sunsean.com/idTabs/

Nivo slider is working good when its alone… but when i try to use idTabs… not… Problem is that slider is working only on the first tab… on the second is only “loading” image…

Here is the image how its look:
1: tab 1
2: tab 2

On the nivo site is:

The Nivo Slider does support multiple sliders on the same page however you must use jQuery v1.4.0 or greater for it to work.

i have 1.4.2 version of jQuery

could someone help me with this?

here is code which i made in my wordpres files…

in head soction of header.php is:

<!-- idTabs -->
<?php wp_enqueue_script('idtabs', get_bloginfo("template_url") . '/tabs/jquery.idTabs.min.js', array('jquery')); ?>

<!-- nivo slider -->
<link rel="stylesheet" href="<?php bloginfo('stylesheet_directory'); ?>/nivo/nivo-slider.css" type="text/css" media="screen" />
<script src="<?php bloginfo("template_url"); ?>/nivo/jquery.min.js" type="text/javascript"></script>
<script src="<?php bloginfo("template_url"); ?>/nivo/jquery.nivo.slider.pack.js" type="text/javascript"></script>

<script type="text/javascript">
$(window).load(function() {
	$('#slider').nivoSlider({
		effect:'sliceDown', //Specify sets like: 'fold,fade,sliceDown'
		slices:25,
		animSpeed:500,
		pauseTime:2800,
		startSlide:0, //Set starting Slide (0 index)
		directionNav:true, //Next & Prev
		directionNavHide:true, //Only show on hover
		keyboardNav:true, //Use left & right arrows
		beforeChange: function(){},
		afterChange: function(){},
		slideshowEnd: function(){} //Triggers after all slides have been shown
	});
});
</script>

on page.php file is:

<div class="usual">
  <ul class="idTabs">
    <li><a href="#idTab1" >Strony www</a></li>
    <li><a href="#idTab2"class="selected" >Fotografie</a></li>
  </ul>
  <div id="idTab1">
			<div id="slider" >
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide4.jpg" alt="" />
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide5.jpg" alt="" />
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide6.jpg" alt="" />
			</div>
	</div> 

  <div id="idTab2">
			<div id="slider" >
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide1.jpg" alt="" />
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide2.jpg" alt="" />
				<img src="<?php bloginfo("template_url"); ?>/nivo/img/slide3.jpg" alt="" />
			</div>
	</div>
</div>