[plugin] Trouble installing WP-PostRatings

I’m having this problem with both the wp-postratings v1.4 and wp-postratings plugins. For example, when I navigate to the posts I see this:

http://img.photobucket.com/albums/v232/DesertChicken/example1.jpg

Notice how the “Loading” text and gif are loaded below the heart icon and rating text.

When I hover over the two icons, I get these Java Console errors:

http://img.photobucket.com/albums/v232/DesertChicken/example2.jpg

Those are Javascript functions that exist in a .js file in the plugin code. Do I somehow have Javascript disabled for my WAMP install? Is it something to do with the way the .js file is referenced by the plugin’s .php file?