Hal,
I looked at the QualiFire theme you sent me and frankly, I wouldn't even use it. The guys who built it playing tricks and tricked themselves into breaking the footer. Here is how:
At the bottom of the footer.php file, they encoded a chunk of code - HTML, JavaScript and PHP code into a base64 hash. Any reputable place (like WordPress.org) would band this theme from distribution for this. Anyway, if you delete the code, it breaks the footer. But the encoded PHP in this hash doesn't get executed, it simply gets printed out with HTML. You can see that in the source code of your pages, just look for the line that contains wp_footer(). The wp_footer() function is responsible for printing many javascripts, and that's why the calculators didn't work. Another issue with the encoded code - they included a hardcoded link to an electronic cigarettes company. I think this theme was intended for link building.
Anyway, to fix the issue above, you can decode their encoded hash (this tool does that http://base64decode.org/) and paste it back into the footer.php instead of the code the does the encoding. Also remove the link. And all should work. Or add the following line at the very end and leave everything as is.
<?php wp_footer(); ?>