SB Review is based on 1.1.1 of this plugin, which is almost 2 years old and written against WP 1.x. Even if you can get it to work, it's just too buggy. For example, when spammers fill in a comment form with no ratings, their ratings count against the averages even when you delete the spam. 2.0 fixed all the bugs and added real administration screens, the easier setup, included theme that has it preinstalled, the ability to sort posts by weighted average, etc.
Review copies: I'm going to send download links to radio and trigatch4 since they've volunteered. Give it a try and let 'em know what you think. The concept of the plugin is simple, but it makes some really effective sites
