Reading A Net Metering Meter

Any help here?

I took these pictures of the net metering meter at the Superior Colorado North Pool on October 2 2009. I took them because I want to come back next year in Oct. 2010 to read it again to see what the result is of 1 year of solar panel use.

The comment from Drew (installer) mentioned in the post I did on the Pool system was this:

Without any energy efficiency measures being taken, this system will offset approximately 15-20% of annual energy costs.

I have a feeling that it will do much better than that, I will guess 50%. So that is why I took these pictures. However I have no idea how to read this meter since as you can see it has 4 different reading.

Anyone know how to read this multimeasurement net meter?