I am pending of a "feature" I've request to CRE module support, as they are not supporting (from my point of view) different tags for votingapi, because the queries don't restrict only to the custom tags when a node is voted by more than a voting-module.

here is the request: http://drupal.org/node/245349

Until this is fixed, the module i've posted only works if you don't have another module that uses votingapi or if you have one, but the content type "product" is not voted.

I'll keep you informed about this

Thanks!