Thats because it was in the NEWS RELEASE which goes hand in hand with this letter. He states:

"the geophysicists are now preparing plate models in and around the previous drill holes and marrying their work from the last two years with our drill results and Koop’s last two DEEPEM surveys. We will release that set of images and their impact on our drill thinking in the next two or three weeks."

The NR states:

"The drill plan for the southern extension of the Tower Zone anomaly will be confirmed following this final analysis of the summer 2009 geophysical and geochemistry data. It is expected drilling can begin near the end of September."