Hi Grant, by default, the slides.js code does not display the play/pause button (unless you're using one of the examples that do).
Anyway, look for the script in your HTML doc that you need to include to start the slideshow; something like:
<script>
$(function() {
$('#slides').slidesjs({
play: {
active: true
},
width: 940,
height: 528,
navigation: false
});
});
</script>
Set active to false. That will remove the play buttons. If you don't see 'play' propery name in your code, then the play button should not be generated. Hope this helps!