Implementation of Market Monitor by Timelysetup

Today I implement the market monitor strategy developed by timelysetup. Based on the following chart, we can see there is slight difference from timelysetup's. I think the cause is that Timelysetup is using the longer period for summation than I am doing.

Some observation from the chart:
1. From 01/15/2011 to 02/17/2011, price and indicator are forming the divergence.
2. We are currently at very negative reading. Expect to have some bounce here.
3. Can we have the indicator go above 0 again in the next few months?
4. The indicator can be used for timing 401K entry and exit.