Your page is still missing the required SCRIPT portion of your View Cart code:
<script language="javascript" type="text/javascript">
<!--
function EJEJC_lc(th) { return false; }
// -->
</script>
<script src='http://www.e-junkie.com/ecom/box.js' type='text/javascript'></script>
Your page is still missing that final line. I made a copy your page's source code, added the missing line to my test copy, and verified that all the cart buttons on the page worked just fine with our overlay-style cart (no popup tab/window).
You will need to figure out how Weebly may allow you to paste in HTML without having that HTML removed or altered in any way when you save the page (if you need help with that, consult Weebly's help pages or support staff).