Hello,
I had a similar problem with using a heat map extension for google maps that set the initial map location to the UK. Getting the map to point to Chicago USA was simply a matter of changing the map center specifications in the java script that defines the extension (Script.js).
//Define Map center
var center = new google.maps.LatLng(41.846802960773374, -87.64549255371094);
Simply find the coordinates of where you want to point to an use those.
You will probably need to play with the zoom level as well:
var mcOptions = {gridSize: 40, maxZoom: 15}; // Adjust maxZoom settings to adjust zoom level of map
Hope this helps,
Rob
