NextGen Smooth Gallery not working in Header

[Nancy Strong]

I have tried several slide shows, galleries, etc. to work in my header. WP-Cycle was recommended but that is a very time consuming slide show and is very fickle when it comes to photo sizes.

I have put all of the NextGen Galleries in my plug-ins and I like the Smooth Gallery at this point. However, the code I am given to use is not showing up in the header.

Is there something else I need to change to make this work? When I put the WP-Cycle code in the header it does work.

Here is the code with Smooth Gallery.

<div id="header">

<div class="headerleft">
		<a href="<?php echo get_settings('home'); ?>/"><img src="<?php bloginfo('template_url'); ?>/images/logo.png" alt="<?php bloginfo('description'); ?>" /></a>

	</div>

<div class="headerright">
<?php 
  $content = "[smooth=id: 4; width:550; height:350; timed:true; arrows:false; carousel:false; links:false; info:false; align:right; frames:false; delay:6000; transition:fadeslideleft;]"; 
  smooth_show($content); 
?>

     </div>

</div>

I have also tried vSlider. I don't like the effect this uses, I wanted something that slide underneath the headerleft. But this code works.

<div id="header">

<div class="headerleft">
		<a href="<?php echo get_settings('home'); ?>/"><img src="<?php bloginfo('template_url'); ?>/images/logo.png" alt="<?php bloginfo('description'); ?>" /></a>

	</div>

<div class="headerright">
<?php if (function_exists('vslider')) { vslider(); }?>

     </div>

</div>

Is there something I am doing wrong?