[dez250]

each dark green box is worth 100 points,
from 1-99 rep points you will have a single dark green box (or grey if your new).
from 100-199 its 2 dark green boxes
200-299 is 3 dark green boxes
300-399 is 4 dark green boxes
400-499 is 5 dark green boxes
500-699 is 5 dark green boxes and 1 bright green box
700-899 is 5 dark green boxes and 2 bright green boxes
900-1099 is 5 dark green boxes and 3 bright green boxes
1100-1299 is 5 dark green boxes and 4 bright green boxes
1300-1499 is is 5 dark green boxes and 5 bright green boxes
1500+ is 5 dark green boxes and 6 bright green boxes

Currently you cant go over a total of 11 boxes. Also when you place your curser over the boxes it will give you a phrase which represents the users point value. Also like Cory said, each person will give or remove a certain value with a positive or negitive rep comment. people who currently have 1 grey box will not give or remove any rep points when they send a positive or negative request. I dont know if there is a way to see how much each request is worth with out brandon doing some work on a new feature...