I have spent about a couple of hours trying to get this to work. I can see the chart with the colored squares but nothing I do seems to put any data in the chart. I played around with changing permalink structure and tried to follow the instructions http://www.esscotti.com/wp-pedigree-builder/ I hope I'm just doing something wrong, but it looks to me like the plugin is broken. If anyone can get this plugin to work please let me know. I would really like to try this plugin!