Nice to have you along. Reviews are actually due 13th for Core members (there are three of us, the founders so to speak) and 20th for Standard Members if they want the extension, though ideally all reviews in by Sunday would be what we would aim for.
If you're reviewing, check the matrix which appears on page 65 I think (or just copy it from any of the albums already reviewed: I'll be posting mine in the next day or so) and on or about the same page is our rating system.
Welcome!