We have installed a module called mico_carton on our magento installation. It is a box price calculator. Currently, the price display isn't working on our sales pages, but it's calculating the box sizes correctly.
The module's support staff told us that it might be a problem concerning jquery being included twice.
We need somebody knowledgeable in Magento and jQuery to fix this issue.
Here is a link to the sales page: [url removed, login to view]
The website is currently in developer view mode, so the red boxes are normal.
A picture of the problem is attached: