Pentaho GMaps Overlay Reviews

Hi, I'm trying to use Google Overlay map in Pentaho CDE. I tried download the sample and deploy in my local pentaho server. I'm getting 3 maps in layout, but no colors plotted in the maps Can you please help me to figure out "what am i doing wrong ?" I am working on a project which requires to Plot the details(Count /sum/test dates in popup) based on Latitude and Longitude of individual well details. Can it be done by this or I need to go for other component? Please suggest. Thanks for your assistance, Awaiting for your response, BalaChandar.S