Hi Andy,
nice plugin, but I have there is one problem. On your site the "rate this product"-stars are difficult to find, cause they are blank.
The second problem is, that you have two star images. The already rated and the stars where we can rate.
In my wordpress blog. I have a rating system that includes this two parts into one.
You can rate and see the result in one image. Hope you understand what I mean ;-)
Here is an example (scroll down to the stars)
http://www.gpaed.de/...king-papierflugzeug/

Matthias
gpaed.de