DART Buoys

I am monitoring the President Bush announcenment about the DART buoy implementation and the original plan it does not match with the one showed on the NOAA DART buoy web , the peruvian coast included 3 buoys ,now only include just one and very far from coast. I need some help to full understand the proposed DART buoy plan, http://www.magazine.noaa.gov/stories/mag159.htm http://www.noaanews.noaa.gov/stories2006/s2765.htm In the links I found two graphs showing different buoy locations!!