permalinks mess up javascript pathing?

I’m trying to use this script/css called tablecloth on my site. The installation is simple – copy the folder to your site root, include the links to the JS and CSS in your header.

I did this and the example in their folder works as you can see here:

http://www.teamrainbo.com/tablecloth/index.html

However, when I try to hit one of my WordPress pages with it, it doesn’t appear to find the path back to the files. I tried using full URLs to the css/js like

http://www.teamrainbo.com/tablecloth/tablecloth.js

But I get a 404 – even though the file is there. I’m assuming this has something to do with mod rewrite/permalinks structure – but when I try and hit the page directly with permalinks turned off like so:

http://www.teamrainbo.com/index.php?page_id=7

Same thing, it doesn’t work. Anyone have an idea why wordpress might not see these files?