Website Coding/Google mapping needed

Our coder has crashed and cannot be found in middle of project see our website at [login to view URL] We need this site recreated from scratch See google mapping app. See two boxes on right that need to be programmed. Top box changes when registered user adds trees to site the number will calculate automatically When regsitered user adds trees they will be bale to find species location and other info on map when they zoom in on city anywhere in world. Last box is carbon calculator Site needs to be complete shopping cart as well.