JQuery cycle no longer working

JQuery cycle no longer working

About two months ago I added JQuery Cycle to a friend's website and it
worked fine, but now it seems to have stopped. I've not amended anything
on the site for a while, and can't figure out what's going on.
All the images are now just stacked on top of each other
(http://www.valleygroomers.co.uk/)
This is the call to it in the header:
<script type="text/javascript" src="/jquery.min.js"></script>
<script type="text/javascript" src="/jquery.cycle.all.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('.slideshow').cycle({
fx: 'fade'
});
});
</script>
And this is the slider itself:
<div class="slideshow">
<img src="images/slide/b1.jpg" width="850" height="234" />
<img src="images/slide/b2.jpg" width="850" height="234" />
<img src="images/slide/b3.jpg" width="850" height="234" />
<img src="images/slide/b4.jpg" width="850" height="234" />
<img src="images/slide/b5.jpg" width="850" height="234" />
</div>
Thank you in advance.