[Plugin: NextGEN Gallery] Next Gen work with WordPress MU?

Does Next Gen work with WordPress MU? I am using version 2.84a and Next Gen version 1.43.
Website: https://www.parklandsd.org/web/omslibrary
I have this code inserted on the home.php page to call the slide show: <?php echo do_shortcode('[slideshow id=1]'); ?>
I also tried:

<div class="slideshow">
<div class="swfobject" id="so4_1" style="width:375px; height:250px;">
<p>The <a href="https://www.macromedia.com/go/getflashplayer">Flash Player</a> and <a href="https://www.mozilla.com/firefox/">a browser with Javascript support</a> are needed..</p>
</div></div>
<script type="text/javascript" defer="defer">
var so4_1 = {
	params : {
		wmode : "opaque",
		allowfullscreen : "false"},
	flashvars : {
		file : "https://www.parklandsd.org/web/wp-content/plugins/nextgen-gallery/xml/imagerotator.php?gid=1 ",
		linkfromdisplay : "false",
		shownavigation : "false",
		showicons : "true",
		overstretch : "true",
		rotatetime : "6",
		backcolor : "0x000000",
		frontcolor : "0xFFFFFF",
		lightcolor : "0xCC0000",
		width : "375",
		height : "250"},
	attr : {
		styleclass : "slideshow",
		name : "so4"},
	start : function() {
		swfobject.embedSWF("https://www.parklandsd.org/web/omslibrary/files/imagerotator.swf", "so4_1", "375", "250", "7.0.0", false, this.flashvars, this.params , this.attr );
	}
}
so4_1.start();
</script>
<div style="clear:both;"></div>

I tried different paths to imagerotator.swf.
(I do have the imagerotator.swf). It seems like it can’t find the pictures. Even if I insert a photo into a page, it can’t find it.
Next Gen has the path to the gallery as: wp-content/blogs.dir/5/files/ and the path to the image rotator as: https://parklandsd.org/web/omslibrary/files/imagerotator.swf
How is the path set up for WordPress MU? The folder permissions are correct – even set them to 777 to see if that was the problem.

Thanks for any help.