How are you opening the chart? You have to open the chart from the system results (you can do this by double-clicking a trade in the trade list or on a symbol in the symbol results tab) in order to see indicators and chart objects from a simulation run.
Also, the DrawText sample only draws text on the chart for one day each year (by default February 14th), and only if that was an active trading day. So you might not be looking at the right part of the chart.
Here's what it looks like: