Hi,
You can use just jQuery 1.9.1 but make sure it’s also included before the link to SmartMenus jQuery in the source – i.e. you should have something like this in your source:
<!-- jQuery -->
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<!-- SmartMenus jQuery plugin -->
<script type="text/javascript" src="jquery/jquery.smartmenus.js"></script>
<!-- SlidesJS plugin -->
<script src="jquery/jquery.slides.min.js"></script>
Also you will need to set relative position for your main menu and a specific z-index, otherwise the sub menus will not appear properly over your slider – e.g.:
<ul id="main-menu" class="sm sm-simple" style="position:relative;z-index:100;">...
Cheers!