Displaying a map on your website is very easy: Install the module, publish it, done.
Set start location
Go to the module settings and switch to Map configuration and edit the fields Start position. You need the latitude and longitude values of a coordinate.
The easiest way to get the values is to search place on OpenStreetMap. The URL will show you the values, for example: http://www.openstreetmap.org/#map=19/50.55543/7.28314. The first value 19 is the zoom level, the second one is the latitude50.55543 and the third one 7.28314 is the longitude .
All settings have tooltips, showing you what can do here.