i can help with the non-callapsing tags from the fix they gave me.
on the index.php within the admin find this
<script type="text/javascript" src="../css/mootools.js"></script>
and replave it with these 2
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/mootools/1.3.2/mootools-yui-compressed.js"></script>
<script type="text/javascript" src="../js/mootools-more-1.3.2.1.js"></script>
just google for that mootools-more-1.3.2.1.js file and put it in the js folder